I'm curious. Can specify a bit what sort of minigame you did?
Is it 3D or 2D, puzzle, break, match3, memory, action, jump and run...

http://www.puppenheim.org/
http://www.wuerfels-welt.de
Old Game Tutorial: http://www.puppenheim.org/MITutorial.zip
Free Game Editor: http://puppenheim.org/AlienalsWeihnachtsmann.zip
http://www.puppenheim.org/blender_starting_main_settings.txt