I know you said PC games, but there’s also the Nintendo Wii and the PS3 coming (see this thread ) - the PS3 will have the new Resident Evil, Metal Gear Solid and Final Fantasy games and the Wii will have Zelda, Mario, Metroid and others.
I personally think the wii has a weird controller and am not particularly excited about the games coming out for it but a lot of people are (and who knows, I might like them when I play them.) The PS3 will have better graphics but will be much more expensive (600 dollars versus 250 for the wii.)
On the PC front: personally, I am most excited about Stalker: Shadow of Chernobyl. A lot of people will tell you that this game is vaporware - don’t listen to them. Just because it has been in development for a long time doesn’t mean it’s not coming out. Half-Life 2 was in development since 1999, and that long development time has obviously paid off since the game is outstanding in every regard.
News flash to game companies: follow Half Life 2 and Stalker’s example, and work the damn kinks out of your game before releasing it. I’d rather wait 10 years and have an excellent game than a buggy-ass, phoned-in one.
About Stalker: it is a first-person shooter/RPG apparently in the mold of Deus Ex, though it seems to be more on the action side and less on the interaction side. It will take place in the village of Pripyat, site of the Chernobyl nuclear reactor explosion, and is based on a Russian novel called Roadside Picnic. It will have realistic day-night effects, sunsets, thunderstorms, moving clouds, the works. Driveable vehicles and super-advanced AI with NPCs interacting with each other all across the board. A huge area of territory to explore. Most interestingly, the game is to feature supernatural elements and changing game physics depending on where the player is.
The screenshots are absolutely astounding:
A masked gunman (with Chernobyl reactor in background.)
Sunset over the marsh.
Amazing clouds.
Wild dog and more amazing clouds.
Armored guards.
The player character (look at that face!!)
Tentacle monsters.
A Russian commando.
Mind-blowing sunset.
Hundreds of other screenshots are available here.
For me, this is the most exciting thing coming up in the video game world. I will be overhauling my PC before it comes out, to ensure that I have the maximum experience.