Take the chess graphism, and use it with a chess engine.
This pack add's custom object and rides into your "RCT3 Platinum" game
A multiplatform game engine for interactive fiction experiences
A game development kit for Sifteo Cubes.
Retro pong clone implemented using sfml
An Animated 2D Game in the Turbo Compiler.
Sprite Font Creator
3D world editor for game development
this is tic tac toe or zero cross game(for windows os)
Allows the Sourcemod FunCommands to be limited
A very small multi-platform game engine for creating desktop games.
UtiliGame is a light-weight game engine written in Java.
3D Web UI, Embed Web and Flash in 3D Games, based on WebKit
Generates a menu in an AMXX plugin
C-Lesh is a game programming language for 2D games.
An open source C++ console based game (Windows only).
Open Source Virtual World and MMOG Development Platform
QuadTree JS is a library for game developers
Programa para criação de jogos de aventura textuais
A game engine in java for 2D strategy games
Fully fledged steam community SDK