It's hard to come up with a real-time strategy game that's as large and ambitious as Supreme Commander, which came out at the beginning of this year. The spiritual successor to 1997's famed Total Annihilation, Supreme Commander is a sci-fi strategy game that occurs on a scale far larger than regular RTS games. With battlefields that are as large as 40-by-40 square kilometers (or even 81-by-81 in skirmish and multiplayer), the game offers a lot of flexibility and room. When you flash forward to the end of the year, we get Supreme Commander: Forged Alliance. What's impressive is the amount of stuff that developer Gas Powered Games has managed to squeeze into the standalone expansion in relatively little time.