Urho3D Game engine
The AWS GameKit Plugin for Unreal
Wrong answer guaranteed, first time, every time.
KotCity, an open source city simulator
A Simple Lightweight and opensource tic tac toe game for android
For Android phones and tablets
MAME Android Emulator.
Children's learning programming language Karel the Robot in 3D
A multiplatform Dart movie app with 40% of code sharing
Flash Quiz TV (A quiz game for all family)
Classic pac-man on Qt with pure C++.
A JavaScript game library to quickly develop board games for the web
The Atomic Game Engine is a multi-platform 2D and 3D engine
online 4X browser game engine
Open-source, cross-platform, C++ game engine for creating 2D/3D games
3D .NET engine for Windows, Linux, Mac
Cross platform 2D/3D game engine written in C++11 & OpenGL ES 2/3
Egret is a brand new open mobile game and application engine
Cross platform Game Creation Software
Source code of the game "Color Flood Filler" for Android OS
Science Fiction, heavy assault, disestablishment of power.
Mega-Human Battles source code
2D physics engine for games
Escape the Stone Age is a short Adventure RPG Game for Android.