Modpack curators
Park ATM, Create, and performance packs in separate chambers — each with dedicated Java and memory offerings.
Catalog every modpack, loader, and world in its own sealed chamber — nothing bleeds between timelines.
The dig site
Prism Launcher is GPL-3 open source — a lightweight Qt curator for players who run parallel Minecraft lives without a bloated browser shell.
Every instance is indexed like a relic: its own version, loader, Java heap, worlds, and resource packs. Hop from vanilla ruins to Fabric expeditions or Forge vaults without cross-contamination.
Unseal version 11.0.3Curated collections
Bury manual zip archaeology. Prism retrieves Modrinth and CurseForge packs, updates them in place, and keeps each collection in its own chamber.
Single artifacts
Lost track of which jar belongs where? Query Modrinth and CurseForge from inside the vault and stamp updates onto the correct instance ledger.
Vault chambers
Spin up discrete chambers — each with dedicated mods, configs, and Java tuning — then cross the threshold without disturbing neighboring relics.
The antechamber
No embedded browser weighing down the dig. Qt keeps the interface light, and custom themes let you reshape the catalog to taste.
Who enters the vault
Park ATM, Create, and performance packs in separate chambers — each with dedicated Java and memory offerings.
Native builds, AppImage, or Flatpak when your distro prefers a portable excavation kit.
Import legacy instances, then unlock CurseForge and Modrinth without hand-copying artifact jars.
Excavate Forge, Fabric, Quilt, and NeoForge side by side — no shared .minecraft sediment.
Field notes
How today's tools compare on the ground. Prism inherits the MultiMC lineage and layers native Modrinth and CurseForge access on top.
| Criterion | Prism Launcher | MultiMC | CurseForge App | Modrinth App |
|---|---|---|---|---|
| Isolated instances | Yes | Yes | Limited profiles | Yes |
| CurseForge mods and packs | Built-in | Manual import | Built-in | No |
| Modrinth mods and packs | Built-in | Manual import | No | Built-in |
| Ads / Overwolf shell | None | None | Overwolf ecosystem | None |
| License | GPL-3 open source | Open source | Proprietary | Open source |
| Per-instance Java control | Strong | Strong | Limited | Yes |
Provenance
Code ships under GPL-3; logo assets under CC BY-SA 4.0. Official builds span Windows, macOS, and Linux — Flatpak and AppImage included.
Windows SmartScreen may block unsigned installers — the project does not buy a Microsoft code signature. That friction is normal for GPL tools. Read the trust page before you unseal a build.
Trust and security detailsExpedition logs
Modpack curator
Six packs live in separate vaults. Prism refreshes Modrinth mods without folder spelunking — clean ledger, no Overwolf banners.
Linux excavator
Flatpak just works. My Fabric shader relic never leaks into the Forge kitchen-sink chamber.
MultiMC migrant
Old instances imported intact. Built-in CurseForge and Modrinth sealed the migration.
Family vault
Microsoft login via device code. Stable on Windows 11 after one SmartScreen allowance.
Modpack curator
Six packs live in separate vaults. Prism refreshes Modrinth mods without folder spelunking — clean ledger, no Overwolf banners.
Linux excavator
Flatpak just works. My Fabric shader relic never leaks into the Forge kitchen-sink chamber.
MultiMC migrant
Old instances imported intact. Built-in CurseForge and Modrinth sealed the migration.
Family vault
Microsoft login via device code. Stable on Windows 11 after one SmartScreen allowance.
Inscribed answers
Choose Windows, macOS, or Linux builds, read the changelog, and verify integrity marks before opening the chamber.
Download Prism LauncherThe fellowship
Prism Launcher is open source — field reports and code contributions welcome. Source lives on GitHub. Gather in Discord or our Matrix space.
Thanks to every backer on Open Collective. Support development by becoming a backer.
We also thank companies who help keep the lights on.