Game engine supporting many 3D/2D formats and graphic effects
GemRB is a portable open-source implementation of the Infinity Engine
The App Framework for Startups
Open-source full-stack web development framework built on top of React
3D game engine/framework in C, with Luajit and Python bindings now
lua dev plugin for unreal engine 4 or 5
Odamex is a free, cross-platform, modern client-server Doom engine
Arianne is an engine to develop multiplayer online games like Stendhal
inputbox password WIN OSX GTK QT Console VCPKG C# Lua R Fortran Pascal
A free 3d game for PC that does not limit the player. Fight,Build,Gain
Old-school 2D game engine
Full featured MUD server with all the trimmings.
Orx: Portable Game Engine
Cross-Platform Level Editor for Doom3 and The Dark Mod
A game engine for console based text games
A Tile-based Game Engine written in C# mimicing retro consoles.
A 16 bit style game on the 16-bit IBM XT.