Gideros Release version
lua dev plugin for unreal engine 4 or 5
Game engine supporting many 3D/2D formats and graphic effects
Orx: Portable Game Engine
Java Settlers
Spring is a free RTS engine developed for Windows, Linux and Mac OS X.
8-bit Graphical API for Java
3D .NET engine for Windows, Linux, Mac
evolution for vegastrike SpaceSim/Combat/Trade game
Gives agents personality, moods, emotions and emotional attachments.
A generic 2D engine for any kind of game
TR Game Engine allows you to develop your game quickly and easily.
AMOS BASIC reimplementation in Java
also download updates from files section
Read and write PGN format and test moves for legality.
A powerful cross-platform and open-source 3-D rendering engine.
The next generation mud is an open-source extensible, programmable mud