A modular Common Lisp game engine
Open source Old School RuneScape client
Open 3D Engine (O3DE) is an Apache 2.0-licensed multi-platform 3D
Java/JavaFX/Kotlin Game Library (Engine)
A bridge/proxy allowing you to connect to Minecraft
A refreshingly simple data-driven game engine built in Rust
Make Minecraft Java Edition mods, Minecraft Bedrock Edition Add-Ons
Gideros Release version
A tech mod for Minecraft themed around the magic of nature
Flexible level editor
Europa Universalis 4 save game editor
A sharp, readable, vector-y version of Monocraft
Robocode is a programming tank game for Java
Mech Station Beta - Tower Defense like Game
The classic multiplayer strategy game for use as a BBS door
Arianne is an engine to develop multiplayer online games like Stendhal
Java RTS framework
A free 3d game for PC that does not limit the player. Fight,Build,Gain
X3D is the open-standard format for 3D graphics scenes on the Web.
Lucifer: The Ultimate Dev-Ecosystem
LSJ-Server-Terra (Java Multipurpose Sever connected with MariaDB)
Galgame's Multilingual Real-time Machine Translation Tool