Top 20-ish 21 games

• The Binding of Isaac: Rebirth
  

  811 hours playtime

  637 of 637 achievements

• Red Dead Redemption 2
  

  74 hours playtime

  20 of 51 achievements

• Grand Theft Auto: San Andreas
  

  47 hours playtime

  no achievements

• Papers, Please
  

  7 hours playtime

  6 of 13 achievements

• Portal
  

  8 hours playtime

  5 of 15 achievements

• Portal 2
  

  10 hours playtime

  18 of 51 achievements

• Half-Life: Source
  

  19 hours playtime

  no achievements

• The Stanley Parable
  

  4 hours playtime

  6 of 10 achievements

• Mirror's Edge
  

  20 hours playtime

  no achievements

• POSTAL 2
  

  6 hours playtime

  11 of 89 achievements

• Orwell
  

  6 hours playtime

  15 of 27 achievements

• Mafia II (Classic)
  

  14 hours playtime

  24 of 67 achievements

• South Park™: The Stick of Truth™
  

  16 hours playtime

  24 of 50 achievements

• Worms Reloaded
  

  82 hours playtime

  4 of 61 achievements

• Gothic 1 Classic
  

  7 minutes playtime

  no achievements

• Mass Effect 2 (2010)
  

  40 hours playtime

  no achievements

• Helltaker
  

  2 hours playtime

  10 of 10 achievements

• Heroes of Might & Magic III - HD Edition
  

  23 hours playtime

  0 of 13 achievements

• Disco Elysium
  

  17 hours playtime

  9 of 45 achievements

• Outer Wilds
  

  20 hours playtime

  7 of 31 achievements

• Life Is Strange
  

  15 hours playtime

  18 of 60 achievements