(05-02-2010, 11:14 AM)Scraper Wrote: (05-02-2010, 12:38 AM)Kaese Wrote: Also if you want around 1000 definite Steam sales, add Steam-Achievements.
Lots of achievement-whores around 
I've never understand why some people play only for the achievements.
I personally play for fun, not to earn gamerscore or some other points earned through achievemnts.
It depends on the game for me. Mostly I play for the enjoyment, but there are a few games where after a certain amount of time I continued to play to collect a few achievements (like Torchlight, for instance).
Penumbra did have, in a sense, achievements. Finding all the trophies in the game is an achievement-like activity.