Game Maker 1.2a

From GMpedia.org Wiki

Game Maker Versions
Game Maker 1.1 Game Maker 1.2 Game Maker 1.2a Game Maker 1.3 Game Maker 1.4 Game Maker 2.0 Game Maker 3.0 Game Maker 3.1 Game Maker 3.2 Game Maker 3.2b Game Maker 3.3 Game Maker 4.0 Game Maker 4.1 Game Maker 4.2 Game Maker 4.3 Game Maker 5.0 Game Maker 5.1 Game Maker 5.2 Game Maker 5.3 Game Maker 5.3a Game Maker 6.0 Game Maker 6.1 Game Maker 6.1a Game Maker 7.0

Game Maker 1.2a is a quick version that has appeared after Game Maker 1.2, the exact changes in this versions aren't really known, but it probably isn't anything large.