FAQ
Quick answers before you open the grotto
Pick a chamber below — one question at a time. When you need a full path through setup or fixes, drop into Guides.
Prism Launcher is a Qt-based, open-source Minecraft launcher. It walls off each instance so game versions, loaders, mods, and worlds stay in separate alcoves on Windows, macOS, and Linux.
No purchase for the launcher itself — it is GPL-3 free software. You still need a legitimate Minecraft license for authenticated online play.
Prism carries forward the community MultiMC lineage after the PolyMC split. Active releases and patches now ship under the Prism name — use 11.0.3 from this site for current support.
No. Prism Launcher is a volunteer-maintained community project with no tie to Mojang Studios or Microsoft.
SmartScreen scores download reputation, not code quality. Community builds often lack a paid Microsoft signature, so a warning is normal. Verify you fetched 11.0.3 from here, then see Guides for the More info path.
Both work. Flatpak (~40 MiB on the download page) sandboxes dependencies; AppImage is portable. Match whichever format your distro already supports.
Yes — Add instance includes a MultiMC import route. After migration, revisit Java memory and account slots in each alcove. Guides lists the numbered steps.
Release 11.0.3 refines offline authentication for setups that need it. Standard multiplayer still expects a signed-in Microsoft account.
For current online Minecraft on official servers, yes. Prism keeps session tokens local so you can hop between profiles across instances.
A CurseForge CDN change in July 2026 stalled pack fetches on older builds. Update to 11.0.3 for the restored CDN handshake.
Vanilla plus Forge, Fabric, Quilt, and NeoForge each get their own instance shelf. Match mod files to that instance’s loader and Minecraft version.
Source is public under GPL-3 — you can read what ships. Pull builds from this site, check published hashes, and read the Trust page for SmartScreen context. Mods you add remain your call.
Yes. The MSVC installer targets Windows 10 and 11. If MSVCP140 errors appear, install the Visual C++ 2022 redistributable.
Windows (MSVC), macOS (DMG), and Linux (AppImage or Flatpak). Size hints sit beside each artifact on the download page.
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