Open source Old School RuneScape client
Java/JavaFX/Kotlin Game Library (Engine)
A bridge/proxy allowing you to connect to Minecraft
A tech mod for Minecraft themed around the magic of nature
Europa Universalis 4 save game editor
Robocode is a programming tank game for Java
Arianne is an engine to develop multiplayer online games like Stendhal
Mech Station Beta - Tower Defense like Game
Cooperative multiplayer graphical RPG and adventure game
jfCraft : Yet Another Minecraft Clone
Java RTS framework
X3D is the open-standard format for 3D graphics scenes on the Web.
Full featured MUD server with all the trimmings.
Bridge player's toolkit
A simple cross-platform game engine for creating old-school 2D games
Monopoly-like game
Lucifer: The Ultimate Dev-Ecosystem
World Class Leader Board Editor.
LSJ-Server-Terra (Java Multipurpose Sever connected with MariaDB)
Extensible Line-drawing & Polygon-filling Rasterization Libs for Java
Tool for managing a kendo tournament