GameVault vs Prism Launcher

GameVault is a self-hostable platform for browsing and playing DRM-free games stored on a file server. Its server indexes game files and adds metadata, while clients let users organize, download, install and launch games. The client records playtime and game progress, including offline. Server features include multi-user authentication, role-based access, parental controls, backups and OAuth2 authentication. Users can choose a browser-based Web UI, a legacy Windows app or an early-access desktop client for Windows, Linux and macOS. The browser-only session cannot install or launch games on the user's computer; the full download manager is available in desktop clients. GameVault+ includes Playnite, Steam and Discord integrations, alongside a documented REST API for clients, integrations and library automation. Cloud saves and controller support are listed, while remote play and mod support are not. The maker says it uses encryption and follows GDPR rules. Plans include €4.99/month or €49.90/year for personal subscriptions and €8.99/month for a plan shareable with up to five others. GameVault+ is currently available in the legacy Windows app; cross-platform support is described as coming soon.

Prism Launcher is a free, open-source Minecraft launcher for creating and managing multiple installations on Windows, macOS, and Linux. Separate instances can keep their own settings, mods, and resource packs. It installs modpacks from CurseForge, Modrinth, Technic, FTB, and FTB Legacy, and can update them. Individual mods from CurseForge and Modrinth can be installed with loader and game-version matching. Forge, Fabric, Quilt, and LiteLoader support one-click installation. Prism includes a built-in modpack catalog, Java runtime management, game log access, menu customization, and themes. On Windows, macOS, and Linux, version 9.0+ can detect and download an appropriate Java version, though availability varies by package. The macOS build requires Monterey or later; older versions are unsupported. Flathub is the primary Linux distribution method, and official AppImage builds are listed for x86_64 and ARM64. Prism is licensed under GPL-3 and supports free redistribution; the project states that it is not affiliated with Mojang or Microsoft.