You can make it - Open Source MMORPG Platform
The flexible game engine
Godot is a powerful cross-platform game engine
A Minecraft Launcher which is multi-functional, cross-platform
Solar2D Game Engine main repository (ex Corona SDK)
05k0nz's legacy is safe
Self-hosted game stream host for Moonlight
A complete 3-D game development suite written in Java
The main repository for the Linux and Mac OS Bedrock edition Minecraft
Voxel game-creation platform with easy modding and game creation
Write your game with TypeScript in UE or Unity
A Minecraft Java Edition Launcher for Android and iOS
s&box is a modern game engine, built on Valve's Source 2
An Open Source Minecraft Launcher with Modern UX
Powerful, mature open-source cross-platform game engine for Python
A native Lua / LÖVE2D recreation of Gen 1 Poke
Mod manager for the video game RimWorld
Atmosphère is a work-in-progress customized firmware for the Nintendo
Open source cross-platform multi-purpose game toolkit
An unofficial PC port of the Xbox 360 version of Sonic Unleashed
Game Boy / Game Boy Color / Super Game Boy emulator, debugger
The Modrinth monorepo containing all code which powers Modrinth
HTML5 Phigros chart player/simulator
Dedicated Game Server Hosting and Scaling for Multiplayer Games
Cross-platform rhythm game for the keyboard