Warcraft 3 has to be the best game ever. I use it to make tons of maps, which are better than flash games. And all you need to play them is WC3... which is like 20 bux at a store. And what really rocks is you make your own games SOO easy. With GUI triggers, the World Edirot is too much to pass up! Also, with the right tools, you can make your own model files, sound files, even textures. Warcraft 3 engine is both versatile AND flexible, so you can do almost anything, from making a ball ricochet off of walls to making a most complex RPG game with your own custom models, special effects, sounds, music, cinematics, and much more! Why don't people talk about wc3 here? :P Wc3 has to be the coolest, because making your own games is almost FREE, easy, and can be done quickly.
Warcraft 3 is a CD you buy at Wolly world (walmart) or any place that sells video games.
Its like 20 bucks and takes about a year of abundant using, and playing around with it to even START getting used to. It's really fun. :P All you gotta do is buy warcraft 3 (a Blizzard Entertainment product). You can go to www.blizzard.com i guess, or go to Wal-Mart or Fredmeyers or a mall or a computer game store :P they all got it its a big thing o.o