Ct.js is a desktop game engine that makes learning programming fun
Free game engine for development of desktop, mobile, and web games
3D Game engine with editor
Make Minecraft Java Edition mods, Minecraft Bedrock Edition Add-Ons
KorGE Game Engine. Multiplatform Kotlin Game Engine & Korlibs
Stride (formerly Xenko), a free and open-source cross-platform C# game
The flexible game engine
Action-adventure game originally released in 2013
The Tiny JavaScript Game Engine That Can!
Games for tomorrow's programmers
Descent 3 by Outrage Entertainment
World Class Leader Board Editor.
A sharp, readable, vector-y version of Monocraft
Retro style, multi-platform soccer game
Delphi Java - VRCalc++ OOSL (Script) and + (Binary Exec Distro)
Europa Universalis 4 save game editor
A free 3d game for PC that does not limit the player. Fight,Build,Gain
A cross-platform, open-source, pure C game engine for mobile game
An elegant Go board and SGF editor for a more civilized age
3D C++ Game Engine - yet another open source game engine
Modern 3D engine and IDE written using C# and C++.
Solve Go problems (based on GoGrinder GoGrinder.sf.net )
Web powered cross-platform 3D, WebXR game engine
A fantasy RPG.