Javascript library for making tile based games
Free and Open Game Programming Language for Windows and GNU/Linux
creator : Nikola Lukic about : Visual JS 2d canvas multiplatform game
Multi-platform game engine similar to old Megaman with a stage editor
Mahasona engine is an open source game engine.
Open source, moddable game engine for the "Polygon Love 2" game
Java game engine for shoot 'em ups, using Java2D.
A complete 2D Game Engine with built in drag and drop editor