The best open source alternative to Steam is itch.io. If that doesn't suit you, our users have ranked more than 50 alternatives to Steam and 17 is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Steam are Lutris, Playnite, Heroic Games Launcher and Game Jolt.
Indie game marketplace and community platform providing customizable pricing, pay-what-you-want options, game file hosting, stats tracking, and an app managing downloads and updates across Windows, macOS, and Linux, plus support for non-game digital content.
Lutris is an open source gaming platform for GNU/Linux. It allows you to gather and manage (install, configure and launch) all your games acquired from any source, in a single interface.
Open-source launcher and manager organizing PC, emulated, and custom games from platforms such as Steam, GOG, Origin, and Uplay under a single customizable interface, supporting metadata, controller mode, plugins, themes, playtime tracking, and multi-language options.
Heroic is an Open Source Game Launcher for Linux, Windows and macOS (10.15+, won't work properly on High sierra and older versions). Right now it supports launching games from the .
Experience a vibrant community for gamers and creators, offering challenges, rewards, and a shop for collectibles. Share and sell personal creations, explore anime and fan art, connect in a global cosplay realm, and more.
Hydra is a Game Launcher with its own embedded BitTorrent Client and a self-managed repack scraper.
Ascendara simplifies your game management experience by providing a seamless way to discover, organize, and test pre-installed games. No more hassle with extracting, installing, or moving files. The game library is powered by a custom webscraper, currently featuring titles...
Pegasus is a graphical frontend for browsing your game library (especially retro games) and launching them from one place. It's focusing on customizability, cross platform support (including embedded devices) and high performance.
RetroAchievements.org is a community who collaborate and compete to earn custom-made achievements in classic games through emulation.
A simple and lightweight app for running Windows games using UMU-Launcher.
It uses nostr to establish identity, linking release artifacts to social profiles validated by the web of trust. This enables secure installs, a new app discoverability layer and developer monetization via zaps.
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Quite possibly the best place available to lose an afternoon digging through both free and paid indie games ever since Desura kicked the bucket.