Here is the full list of all 14 The Escapist achievements.
Collect $20,000 in total
Collect $50,000 in total
Sightsee the misterious character
Find all the secret spots
Beat the first Boss
Beat the second Boss
Beat the final boss
???
All upgrades unlocked
First upgrade unlocked
Doing the unthinkable
Beat the game, no upgrades
Is this it?
Collect all coins in stage