The first week of September brought about a bunch of new PC game announcements, including the news that a certain title 13 years in the making may finally be coming out after all. Let's look back at the past seven days:

Exclusive features

• Reviews: We give our final verdicts for the crime action game Mafia 2 and the puzzle title Tidalis.
• Boot Disk: Our retro games column takes a look back at the hacker-themed classic Uplink.

Downloads

• Amnesia: The Dark Descent demo: Try out this sample of the upcoming horror-themed first person adventure game.
• Lost Horizon demo: Its a small taste of the PC adventure game.
• Company of Heroes Online Install Client: Relic is letting folks try out its upcoming WWII-themed persistent RTS game for free.
• Blood Good Time trailer: Check out the first glimpse of this over-the-top multiplayer action game.
• Firefall trailers: Check out this cinematic trailer and this long gameplay walkthrough for this just announced online shooter.