SDL library for Android, including several games.
Run Windows applications on any computer.
jMednafen is a front-end for Mednafen
Android port of DoomRL (Doom, the Roguelike)
Android, DOS, FirefoxOS, Linux, MacOS and Windows all in one..
An advanced flexible game engine for Java.
A programmable platform for a fantasy RPG game.
An OpenSource (C# .NET) TeamPlay Environment.