Can't 100% 6 games

• Bastion
  

  20 hours playtime

  8 of 24 achievements

• Castle Crashers
  

  14 hours playtime

  6 of 12 achievements

• Invisible, Inc.
  

  22 hours playtime

  8 of 23 achievements

• Overture
  

  4 hours playtime

  0 of 4 achievements

• Portal
  

  12 hours playtime

  8 of 15 achievements

• Portal 2
  

  30 hours playtime

  39 of 51 achievements