This game puts the survival in survival horror!
Excellent game! plenty of challenge, plus some really good design--it definitely felt like a horror game. I wish there was a little less lag, so all of us with cheap PCs can play it. For all you noobies, here's how to survive the first level:
1. Keep near the walls.
2. Click really fast when firing the pistol. It's semi-automatic, so click and hold will fire just one time, and one bullet will NOT kill anything in this game.
3. Avoid dark areas until you're sure that you need to enter them--there's no telling what is in there. Some areas have ammo in them, without being important otherwise, so you may want to explore a little, if you're sure of your reflexes.
4. When walking down a hallway, check both ways for aliens every once in a while. If you aren't careful, you'll run smack into an alien.
5. Have a good amount of reflexes--if you pause for a half second after sighting an enemy, you'll take TONS more damage, and the second level has almost NO health stations.