Nigel first blogged about Game Maker , the free game designing software, way back in 2003. Well a lot has happened in 5 years. The Gamemaker engine is now up to version 7 and they’ve made a lot of improvements. Using Game Maker you can now create platform games, first person shooters, third person shooters, massive multiplayer online games and construction/management games like Sim City. The games you can make have also improved allowing you to add 3D models as…