Godot Minimal Theme
High performance UI layout library in C
All Google Snake mods combined into one
HTML5 Canvas Tower Building Game
Godot game template and component-based framework
A modern, cross-platform Quake game engine based on FitzQuake.
3D Engine c++
Odamex is a free, cross-platform, modern client-server Doom engine
0 A.D. is a free, open-source, cross-platform real-time strategy game.
Zoomable user interface (ZUI) with file manager, file viewers and more
A standalone UQM mod made to enhance gameplay and visuals
A cross-platform port of Hexen II game.
A fun realistic multiplayer free-and-open-source first-person-shooter!
X3D is the open-standard format for 3D graphics scenes on the Web.
realistic driving simulation + functions for 2D/3D graphics
General Purpose Engine for Graphic Adventures.
C++ lightweight cross-platform game engine
A free 3d game for PC that does not limit the player. Fight,Build,Gain
Game engine supporting many 3D/2D formats and graphic effects
Games for tomorrow's programmers
State Management and Multiplayer Networking for Turn-Based Games
Spring is a free RTS engine developed for Windows, Linux and Mac OS X.