Something that bugs me about Steam
Games that have too many achievements for their length.
Here are some good examples; Shank, takes about 2 hours to beat, has 12 achievements. This is a good ratio.
Meh example; L4D2, has 61 achievements, each campaign takes about 45 minutes. However the extra achievements can be justified because it has high re-playability due to multi-player.
Bad example; Galcon Fusion, has 135 achievements. Now that is just silly
Horrible example; Team Fortress 2. Ok I understand that people play this game religiously, but it has 368 achievements.
I wish they would limit the number of achievements per game >_>