Ok, so it's not something that will contribute to the improvement of humanity (or even myself) but I did finish three xbox games recently. For someone who gets bored easily and always looking for something new, this is quite an accomplishment. I finally got all achievements for Viva Pinata and I finished the storyline for Half-Life 2 and Overlord.
Viva Pinata is a similar to a simulation game, more information on Mike's blog. I've been playing it on and off for a while. It's very enjoyable but can be a bit slow at times. I usually play it as a nice distraction after getting frustrated with FPS games. I only had about 6 more achievements to complete the game so I just finally sat down and finished it up. This will probably be the only game I'll ever get all 1000 pts.
Half-Life 2 is a fantastic FPS game, Mike's review here. I thoroughly enjoyed the game since it wasn't just a straight out shooter like Halo 3. There is a rather involved storyline with exploration and puzzles involved. I still half Half-Life 2 Episode 1 & 2 to complete although those are much shorter. Apparently Valve (the makers of Half-Life) didn't want people to wait 6 years for the sequel, so they released smaller episodes instead. Half-Life 2 episode 1 & 2 are actually misnomers, they were meant to be Half-Life 3 episode 1 & 2. Valve plans to release episode 3 sometime in the near future, hopefully with Portal 2 added in!
Lastly I finished the storyline for Overlord. Overlord is an interesting game, similar to Pikmin (gamecube game). You are the Evil Overlord and control minions (4 different colors - each has their own strengths/weaknesses) to do your bidding. I found Pikmin to be much more fun and easier to control but Overlord was still enjoyable. I finished the game with 0% corruption (I was a *good* Overlord). If I want to collect more achievements, I need to replay the game to get 100% corruption (*evil* Overlord).
Three games down....infinite more to go.