Whoa! There have been a few things since our last feature release almost two months ago! Major new features include the new mod updater and Qt 6 support. in a nutshell: mod browsing and installing from modrinth and curseforge right in launcher. PolyMC is an Open Source Minecraft launcher with the ability to manage multiple instances, accounts and mods. If you play on Linux, PolyMC is my preferred launcher because it's available via flatpak. Tips. I believe Geyser has a way to convert resource packs, so you might have some luck with that. 3. Go into the main PolyMC Settings, click Minecraft in the left panel and click the option to close PolyMC when the. The place to hide your Modded MC memes from the wrath of the Everseeking. 2 Description of bug installed about 50 mods but when I start the game it crashes and I get the following error: Steps to reproduce PolyMC version: 1. PolyMC / PolyMC Public. bustacap9000 • 10 mo. Account data is stored in the accounts. PolyMC is a fork of MultiMC with some improvements added on. 002337: First Submitted: 2021-12-28 00:24 (UTC). All code is available on the GitHub under the GPL-3 license. polymc,prismlauncher: replace PolyMC with PrismLauncher. PrismLauncher is now like 300 commits ahead of. Recent commits have higher weight than older. I am unsure if the recent drama with the PolyMC management has anything to do with your problems. What is PolyMC? It's an alternate launcher for Minecraft Java Edition that people use to manage multiple game profiles for playing mod packs. PrismLauncher is the old devs of PolyMC just carrying on with their work after finding themselves kicked from the project. Minecraft is an action-adventure sandbox game where players can build pretty much anything they like, explore their surroundings, craft items, and even engage in combat. Tabzlock • 2 yr. PolyMc is unique in that it operates on packet level. It could take between 1-5 days for your comment to show up. Ok everyone, the polymc posts are getting out of control and this is devolving into just petty 'he said/she said' drama at this point and creating a LOT of havoc in a sub that, I'm really sorry, but really is NOT the sub to have these discussions in. The jar mod ending with _MOD is present in the instance's version list, and the starting message says "Jar Mods: OptiFine_1. And then copy the files from there to your instance folder. 1. By Liam Dawe - 18 October 2022 at 8:56 am UTC | Views: 83,092 Update: here's a fresh Steam Deck guide with Prism Launcher. Not sure if that's the issue or not though, but I'd recommend switching either way. u/CheesytheCheesecurd, you can click here to search for your question. Especially on Fedora, MultiMC doesn't seem to. PolyMC isn't "compromised". PolyMC has a curse integration so you can easily download the packs from the launcher itself. The issue is: the main developer freaked out, made a post ranting about political bs, kicked everyone from the GitHub project and now it's been 2 months since it hasn't been updated. Focused on user freedom and free redistributability' and is an app in the gaming software category. PolyMC 5. 0, now available 07 Nov 2023 release. Post or comments that intentionally stir up drama will be removed and may result in a ban. Java 0 MIT 26 0 0 Updated Jul 30, 2021. 16. As for drama, there will always be drama. The polymc. The racists, sexists, homophobic, Nazis, etc all seem to flock to one side and not the other. PolyMC in a terminal which will uninstall PolyMC but it won't delete any of your instances or saves etc. Everything started going big when LennyMcLennington ( GitHub) removed the CoC (Code of Conduct) form PolyMC's repo, link, local archive, external archive. . PolyMC is a custom launcher for Minecraft that focuses on predictability, long term stability and simplicity. The developers who used to contribute to "PolyMC" moved from the "PolyMC" project to the "PrismLauncher" one after the drama. Stars - the number of stars that a project has on GitHub. Activity is a relative number indicating how actively a project is being developed. It's good software. Tl;dr PrismLauncher is the active one currently and PolyMC would probably stuck with the current state for a while. If you insist on using PolyMC and not any other launchers (there are many), then I can suggest you try to download Python packages and potentially fix the QT tool problem. TheBaconGuy403 • 10 mo. . I've finally completed the build. Polymc is just a fork of multimc. option ( BUILD_TESTING "Build the testing tree. Run the command cmake --install build, and it should install PolyMC to whatever the -DCMAKE_INSTALL_PREFIX was. PolyMC Update 1. I tried to install OptiFine for MC 1. Third, kicking people off and and taking control (yes that's a hijack) is often a precursor for a security risk. It's a bit more automated than multi/poly/prism, but still offers full control. For now, it's still very early to know what will happen for sure, but my plan is to remove the polymc package from the repos, since it's not trustworthy anymore, and *if* a more robust / trustworthy governance over the new project / fork can be achieved, such that this sort of problem won't happen again by any means, then it could perhaps be. The issue is: the main developer freaked out, made a post ranting about political bs, kicked everyone from the GitHub project and now it's been 2 months since it hasn't been updated. Many users, especially across Linux, and other Unix-like platforms, which lacked. What is. g. Recent commits have higher weight than older. If you are aware of software development, actions like this are usually viewed as not only a risk, but as inherently scummy and malicious. OpenAsar - Open-source alternative of Discord desktop's app. tons of small bug fixes and QoL changes. polymc Submitter: lovetocode999 Maintainer: LennyLennington (Kaydax, sperg512) Last Packager: Kaydax Votes: 12: Popularity: 0. Reply reply. How would one go about playing the most up to date version of Minecraft Bedrock edition. The issue is: the main developer freaked out, made a post ranting about political bs, kicked everyone from the GitHub project and now it's been 2 months since it hasn't been updated. There are more than 10 alternatives to PolyMC for a variety of platforms, including Windows, Linux, Mac, Minecraft and Flathub. Everybody else should avoid this repo. PolyMC now has an option to close after launch. 4 2 0 0 Updated on Mar 3. PolyMC Launcher (1. Description polymc built from git authlib-injector branch Installation Instructions Instructions not filled in by author. ; 1. It's a bit more automated than multi/poly/prism, but still offers full control. Today it seems that the main maintainer of PolyMC has deleted all of the contributors. ). Prism Launcher MangoHud . Some already have: PolyMC 1. Chocolatey is trusted by. Test can be used to test the selected. 3. It does, however, it does require you to login to your Microsoft account once first. 0 or above do not use the "import from zip" option unless you are 100% sure that the. EDIT: PolyMC 1. . On Tuesday, 31st January, a member of the Quilt team discovered path traversal vulnerabilities in five different mrpack implementations, affecting MultiMC, PolyMC, Prism Launcher, ATLauncher and mrpack-install. A mrpack file can be maliciously crafted to create arbitrary files outside of the installation directory. He also proceeded to remove people he deemed to be "radical queers" from the GitHub org and every other. 06 Mar 2022 multimc. 18. 17 or Java 1. the mod pack i am trying to download is ragnamod VI and every time i launch it, it gives me this. The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives. Wait for the Deck to reboot. 4. FWIW, the devs who still controlled the keys did that for us. Ok-Consequence-5794. It must install PolyMC in the same place it is currently installed from. Like previously mentioned, there hasn't been anything unsafe about PolyMC in the first place. After using Twitch launcher and now Curseforge and GDLauncher for modding Minecraft, MultiMC's interface looks too clunky compared to GDLauncher and Curseforge's launcher. . The place to hide your Modded MC memes from the wrath of the Everseeking. It still works. Quilt is a fork of fabric. This website makes use of cookies to enhance your browsing experience and provide additional functionality -> More info Deny Cookies - Allow CookiesMinecraft Mods on CurseForge - The Home for the Best Minecraft Mods Discover the best Minecraft Mods and Modpacks around. 4 2 0 0 Updated on Mar 3. Like scrumplex said, PolyMC could easily be its own thing once more people start contributing to it; we've already got a few features that we'll be working on shortly, including managing of its own java version, and support for LWJGL 3. Recent commits have higher weight than older. The message warns users against using the popul. The issue is: the main developer freaked out, made a post ranting about political bs, kicked everyone from the GitHub project and now it's been 2 months since it hasn't been updated. Heck everyone in the linux community knows this since it seems like we. how to integrate that with the updater?polyMC still works Reply. PolyMC isn't and has never been "compromised", what happened was the dev reclaimed his project and made it so only he can develop it, due to this, far-leftists have started whining that it is compromised since some of the devs locked out were in fact leftists. Neither Prism nor PolyMC are untrustworthy back then and now, they just split due to non-technical drama. DioEgizio changed the title ⚠️ PolyMC was hacked and this is a new, safe fork of it ⚠️ ⚠️ PolyMC founder went rouge and killed it, and this is a new, mantained and safe fork of it ⚠️ Oct 18, 2022PolyMC is described as 'An Open Source Minecraft launcher with the ability to manage multiple instances, accounts and mods. This should be opt-in. PolyMC is already a fork of MultiMC, but it isn't available as a flat pack. PolyMC Update 1. The Minecraft PolyMC launcher is a big part of the sandbox game for a lot of people, but it could be at risk and should be uninstalled to be safer Jason Coles Published: Oct 18, 2022 I believe that one is the continuation of PolyMC, which was an extremely popular fork of MultiMC, until some hostile takeover drama. You could get it from github too. A lead dev of PolyMC did a hostile takeover of the project and basically banned every other dev for political reasons (which had never even been mentioned for the entire project's existence, this was completely out of no where. 0 is released! Major update with heaps of new features and fixes. PolyMC is still opening after I close Minecraft #. Complete rewrite of the custom account implementation to add support for using any Yggdrasil-compatible API server by @evan-goode in #112. It is the official build. Scrumplex added this to the 6. Local archives and new info will follow. Search for PolyMC Prism. At worst there was a minor inconvenience when microsoft revoked their API key, which meant users had to reconnect their account to the launcher. This results in the server being quite stable, all the hacks PolyMc does to display things are separated from what's actually happening. Focused on user freedom and free redistributability. PrismLauncher is the old devs of PolyMC just carrying on with their work after finding themselves kicked from the project. Windows 7 and 8. The developers who used to contribute to "PolyMC" moved from the "PolyMC" project to the "PrismLauncher" one after the drama. polymc-misc Public. The Minecraft PolyMC launcher is a big part of the sandbox game for a lot of people, but it could be at risk and should be uninstalled to be safer Jason Coles Published: Oct 18, 2022I believe that one is the continuation of PolyMC, which was an extremely popular fork of MultiMC, until some hostile takeover drama. This results in the server being quite stable, all the hacks PolyMc does to display things are separated from what's actually happening. PolyMC/CMakeLists. I don’t have wifi at work on lunch breaks and every time I turn on my deck without wifi I have to re-sign in to minecraft so am unable to play…The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives. 4) is a free, open-source launcher for modded Minecraft. So after trying a bunch of times over 3-4 days I eventually had one attempt work, which added the account to polyMC and got me into the game successfully. PolyMC to be switched to current. bbec937. c74f852. The issue is: the main developer freaked out, made a post ranting about political bs, kicked everyone from the GitHub project and now it's been 2 months since it hasn't been updated. Python 3 13 0 2 Updated on Jan 5. just launch the game once,. It is on the roadmap for PolyMC 1. 1. If you want to read about why this fork was created, check out our FAQ page. There's drama in the PolyMC community, and a huge falling-out over politics. PolyMC, a third-party Minecraft launcher, has been the subject of a hostile takeover after the owner revoked access from contributors, raising fears that the. The old multimc-bin installed a shell script that downloaded the launcher binary and installed it in ~ while the new one gets the binary directly and installs it system wide. CurseForge's API Changes took place a few weeks ago. Edit: the PolyMC Devs are also working in adding gamepad support to the launcher UI itself, so that should help with usability if the launcher on the Deck. Assets 3. If you want to read about why this fork was created, check out our FAQ page . 1. Focused on user freedom and free redistributability. The issue is: the main developer freaked out, made a post ranting about political bs, kicked everyone from the GitHub project and now it's been 2 months since it hasn't been updated. i am trying to download a modpack (using polymc curseforge) and it keeps crashing. This repo is intended to point out comical interactions that come up in the world of software development, and not to harass anyone. Distros, keep your repos up to date, ffs. PolyMC Metadata generation scripts. proto_productionsYT • 3 mo. By focusing on speed, ease of use and modularity, Quilt aims to provide a sleek and modern modding toolchain with an open ecosystem. I won't reiterate what happened with PolyMC, see the previous article on that, and please keep the comments focused on Prism and the Guide. Don't worry, Qt 5 will still be supported and packages using it will still be available for some time. org website. 26 Oct 2022 announcement. This fixes many issues with the steam deck and is recommended if you plan to use PolyMC in deck mode. The breach affects curseforge (the website / distribution platform) not forge (the modding api). 1 # api-ms-win-core-synch-l1-2. How PolyMc works. Chocolatey is trusted by. Microsoft Login or Curseforge problems. Focused on user freedom and free redistributability' and is an app in the gaming software category. Considering the lead maintainer of this project is the one who sabotaged our AUR package, and considering I've now had to deal with several discord raids from people linking to this project, expecting anything but hostility in return at this point seems a bit much to me. Microsoft authentication is generally done in a web browser and the tokens that the software gets expire. We can put this in the setup wizard. Request for collaborators to org. Members OnlineSecond, this completely violates the open source ethos that drove polymc. Focused on user freedom and free redistributability. 4_HD_U_I3_pre3_MOD (705cebbd-14c2-4499. 19. I'm not going to go into what the drama is or who is involved, but anyone who is using PolyMC is advised to disconnect your internet connection, run PolyMC, open settings, and under the APIs tag, change the "Metadata Server" field to something. register a sa forums account here! joining the sa forums will remove this big ad, the annoying underlined ads, and stupid interstitial ads!!!To be blunt, you should use PolyMC instead. meta-scripts Public. OptiFine will now be installed as a jarmod in that instance so you can remove the installer and extracted jarmod. 0, now available 17 Apr 2022 release. Yep. Description . json and themeStyle. Can PolyMC be cracked? There is a fork of MultiMC called UltimMC, but recently its support for curseforge and FTB modpacks have been disabled. An Open Source Minecraft launcher with the ability to manage multiple instances, accounts and mods. Hey there! I've been trying to get PolyMC to work but whenever i try to launch a 1. ### Source: # [#656 Issue](`closed`: Adhere to the GPLv3, do not make. . 411 Members. Text steps: Install PolyMC from the Discover Software Centre on Steam Deck, or Flathub directly for desktop Linux. did it "reclaim polymc from the leftoids". Recent commits have. meta-scripts Public. 1- Do not update to a new version, if your PolyMC is 1. This means PolyMc doesn't touch the mechanics of the mod at all. October 19, 2022 - 6:17PM. It does, however, it does require you to login to your Microsoft account once first. Special cases # Forge 1. 2. 5. The latest and greatest news regarding updates, changes and more. And yes it can replace those launchers, it supports modpacks. mojang. An Open Source Minecraft launcher with the ability to manage multiple instances, accounts and mods. From what I saw, it looked like the main story had some drama to it :0 I watched someone names "Otome Ayui" translate some stuff(I highly recommend watching her if you love Twst and I'll link one of her Hypmic videos for who haven't seen it :>)Minecraftのモッドの導入方法です。PolyMCというModランチャーの導入からやっていきます。ランチャーやModの導入は自己責任でお願いします。This mod disables PolyMc when it is installed on both the client and the server. Constructive criticism is allowed but must be done in a respectful manner. Useful resources: Servor's Enhanced FAQ | Servor's Enhanced FAQ Thread (with more answers in the comments!) | Our Wiki Guides Page. Jan 20. After the drama happened I don't really want to use PolyMC anymore so I'm looking for a launcher with similar features comments sorted by Best Top New Controversial Q&A Add a Comment [deleted] • Additional comment actions. All payments are handled and secured by Tebex. PolyMC is basically dead due to some drama. Scripts, configs, packages, etc. PolyMC 1. 1. In a commit, Lenny removed the PolyMC Code of Conduct, which outlined and prohibited discrimination against the LGBTQIA+ community and subsequently removed all maintainers. This was primarily a result of continuing disagreements between a portion of the community, and MultiMC’s lead maintainer, mainly surrounding the topics of 3rd party packaging and re-distribution. But from what we've seen from other members and the slander, one has to be on guard for someone in a position like that and could be biased. If you don't play Java Edition, you are not affected by any of this. If you want updates you'll have to switch to. • 10 days ago. Prism Launcher has been released for Minecraft, rising from the ashes of the controversy with PolyMC (that you should no longer use). PolyMC - A custom launcher for Minecraft that allows you to easily manage multiple installations of Minecraft at once (Fork of MultiMC) . -1. PolyMC is back on Flathub, so we recommend installing it directly from there. css into your PolyMC theme folder: Windows : `C:Users[username]AppDataRoamingPolyMC hemescustom`The issue is: the main developer freaked out, made a post ranting about political bs, kicked everyone from the GitHub project and now it's been 2 months since it hasn't been updated. 1- Do not update to a new version, if your PolyMC is 1. Focused on user freedom and free redistributability. PackConverter Public PackConverter is a library for converting Java Edition resource packs to Bedrock Edition. The developers who used to contribute to "PolyMC" moved from the "PolyMC" project to the "PrismLauncher" one after the drama. The licensing still includes material from PolyMC, though. ago. Go back to the launcher and click the Mods tab. I love all the silliness in Obey Me or Twst while still having that element of some serious story. 1 from the FlatPak repository in Linux, but when I start Minecraft, its video settings aren't those from OptiFine. Bug fixes and patch for a security vulnerability. 0 (fixes the keyboard polling issue, and adds support for ARM). Features: Easily install game modifications, such as Fabric, Forge and Quilt; Control your java settings; Manage worlds and resource packs from the launcher; See logs and other details easily; Kill Minecraft in case of a crash/freezeIt could take between 1-5 days for your comment to show up. Posted by u/proto_productionsYT - No votes and no commentsEdit with further context: polymc's last update was october (which is pretty much when the drama happened) whereas before it was multiple updates a month. Growth - month over month growth in stars. If you don't want to be left in the dust, PolyMC is not the launcher for you. yay -S polymc # stable binary package: yay -S polymc-bin # latest git package: yay -S polymc-git. It sucks because you can't update modpacks with MultiMC. I'm using ATlauncher right now. Prism Launcher is made by the original team outside of the rogue dev. * Projects have drama behind them, this is true and universal. This will probably get downvoted, but yeah, we went through the same drama when the Twitch launcher replaced the old. Re: your 2nd suggestion, "easily set a default instance to launch": I think it's more trouble than it's worth. ) it's the. The issue is: the main developer freaked out, made a post ranting about political bs, kicked everyone from the GitHub project and now it's been 2 months since it hasn't been updated. Chocolatey is trusted by businesses to manage software deployments. I'm just happy to see PolyMC being better alternative already. Players have to install a third-party Minecraft launcher like PolyMC or. All require authentication first before offline will work. By Liam Dawe - 18 October 2022 at 8:56 am UTC | Views: 83,272 Update: here's a fresh Steam Deck guide with Prism Launcher. just nuked its own reputation and projects like Flathub are likely going to want them to distance themselves from. 0 (fixes the keyboard polling issue, and adds support for ARM). The "hack" was removing the code of conduct from the repo. Chocolatey integrates w/SCCM, Puppet, Chef, etc. 19. 127 votes, 14 comments. ) Is it possible to skip the launcher and just go straight into Minecraft? I don't get how to add that when I'm adding polymc to stream? While I'm at it is there a. Some of the reasons I made this: Microsoft's decisions over Minecraft's account system which now forces players to create a Microsoft account to. PolyMC is a custom launcher for Minecraft forked from MultiMC that allows to manage more instances at once. Members OnlineUsed in PolyMc Renderlayer Notes; Noteblocks: 799: standard: Note blocks only require a small bit of code to make sure the particles still work. Then do the same thing for Set Custom Logo. PolyMC is an open-source Minecraft launcher forked from Launcher due to disagreements in the direction of the project, with a similar relationship to Vim and. I've also turned this into a building gadgets schematic. 4. If you're using MultiMC, consider switching to PolyMC. We have a new Ubuntu release, Pocket Casts application is going open source, PolyMC drama, some more Xbox news and more. ago. Disconnect your Microsoft account from PolyMC then uninstall it. At first, people built structures to protect against nocturnal monsters, but as the game grew, players worked together to create wonderful, imaginative things. README. Fixed incorrect messages about having to add an account that owns Minecraft before you can play. for older packs that aren't being updated regularly, but the recent Dev Drama turned me off both Dev teams, so unless it's a platform that AtL doesn't work well with (Steam Deck, è. MultiMC, PolyMC and Prism Launcher all work by Remote Code Execution by design. Make sure it's actually pointing to a java installation. Question for Java on Mac - Instances. The issue is: the main developer freaked out, made a post ranting about political bs, kicked everyone from the GitHub project and now it's been 2 months since it hasn't been updated. A popular launcher available the handheld gaming PC is PolyMC or the Prism Launcher, which also lets you. Like PrismLauncher. We have added lots of new things in this one and improved a few things as well. Think they tried it even with Linus torvalds. no external launcher is safe and trusted. Second, this completely violates the open source ethos that drove polymc. PolyMC development progress is quite crippled right now and it will probably take a long time to recover. I have searched the issue tracker and did not find an. The drop in support happened just a few days ago, which is why the drama is back stronger than ever. It is confirmed that this was not an account compromise, Lenny just. apk in the discover app, but it is a version or two outdated. Growth - month over month growth in stars. It is not endorsed by MultiMC. With the existing cli --launch option you can easily setup shortcuts to launch different instances (shortcuts meaning desktop shortcuts, non-Steam games in Steam, or any other launcher), and still be able. If for any reason you haven't updated to version 5. Battle it out elsewhere, please. It allows you to easily manage multiple installations, instances, accounts and mods of Minecraft at once. 19. 2, 1. Below is the fix I found while browsing this sub. 4) Download Links. Currently, the Close PolyMC after game window opens option opens PolyMC after closing Minecraft, even when launched from the CLI. We offer ranks, Mystery Boxes, Hypixel Gold, SkyBlock Gems, and more. 1. Path blocks: 5. Inside the Edit Instance menu, select the version tab on the left sidebar. Growth - month over month growth in stars. txt. PrismLauncher - A custom launcher for Minecraft that allows you to easily manage multiple installations of Minecraft at once (Fork of MultiMC) . 80. A custom launcher for Minecraft that allows you to easily manage multiple installations of Minecraft at once (Fork of MultiMC) PolyMC is basically dead due to some drama. Over the last few days a warning message has been sent across a lot of the minecraft related discord servers. What is PolyMC? It's an alternate launcher for Minecraft Java Edition that people use to manage multiple game profiles for playing mod packs. NixOS # The PolyMC NixOS package already bundles java. Mainly working on Minecraft stuff. ) Install the app. amam33. It was forked from MultiMC because the PolyMC community felt that the maintainer of MultiMC was not acting in the spirit of free software by disallowing third-party packaging efforts. I'll keep my personal beliefs out of it. 5 and Java 8u321+ # Old versions of Forge crash with Java 8u321+. Posts or comments that deal with religion or politics may be removed and may result in a ban. Download your desired version of meteor from above. 0 comments. save. Follow (This is inspired by @takitafulily and the scenarios they make!! They make MC scenarios with the MCs interacting with eachother and it's amazing :D). PolyMC was extremely highly recommended until said drama, so I assume most of that. asar. It can be be installed using PolyMC's mod downloader function either with Modrinth (recommended) or CurseForge. And this also works for PolyMC forks as well. Both allow granular mod enabling/disabling as well as drag+drop mod jar installation. Oct 20, 2022 @ 7:42am GDLauncher does the job quite nicely: I'm quite new to this non-console Minecraft world, but you need to run a controller mod to get it working natively on Deck (you probably know about this!). For me, I'm sticking to PolyMC. However, these remain safe to users, and we're dedicated to the privacy and security of PolyMC users now and in the future. The logo and related assets are under the CC BY-SA 4. PolyMC is an Open Source Minecraft launcher with the ability to manage multiple instances, accounts and mods. There is currently no evidence that the code has been compromised, or. In the end, we concluded that we will be moving on from our origins as a packaging-friendly fork of MultiMC. 1 - This specialized tool represents a custom Minecraft launcher whose emphasis is centered around predictability and long-term stabilityHello, I am currently using poly mc to launch minecraft modpack but one of them wich is called "Encrypted_" crash with the following stacktrace I use polymc version 5. modpack updating. 2 and MultiMC's dev channel both support the new API. The issue is: the main developer freaked out, made a post ranting about political bs, kicked everyone from the GitHub project and now it's been 2 months since it hasn't been updated. ago. Accept Cookies & Show Direct Link. Alternative is to learn to code. Lenny allows people to ping @everyone in discord. Neglect the malware aspect of it and explain that there are better launchers UI and design wise. It's good software. An Open Source Minecraft launcher with the ability to manage multiple instances, accounts and mods. A free-time developer, who is coding for food. 8. I hadnt actually heard of it until someone in a server im in mentioned it. PolyMC is a custom launcher for Minecraft that was forked from MultiMC. This new version of PolyMC patches a security vulnerability in the software's zip file handling. 0.