A cross-platform port of Hexen II game.
Odamex is a free, cross-platform, modern client-server Doom engine
GemRB is a portable open-source implementation of the Infinity Engine
GLScene Engine for Delphi & C++Builder VCL Windows 32/64
Hardcore 3D space shooter with spaceship upgrade possibilities.
WW2 U-boat simulation
Zoomable user interface (ZUI) with file manager, file viewers and more
A free 3D game engine to create games and realtimes scenes for Windows
Maze creation, solving, exploration, and analysis
3D modeler, 3D game maker, 3D demo maker
Combat Flight Simulator for LINUX. WW2. Network and VOIP. Open-source.
Air traffic control tower and radar simulator (solo + multi-player)
Game library for Pascal
X3D is the open-standard format for 3D graphics scenes on the Web.
LDraw™ editor for LEGO® style digital building instructions.
Game engine supporting many 3D/2D formats and graphic effects
Cerberus Content Management System
Cross-breeding a 3D FPS with a fantasy RPG in the world of Hexen
realistic driving simulation + functions for 2D/3D graphics