Dungeon Tycoon -

: Selling potions and gear back to the same warriors you are trying to defeat. System Optimization

The first visitor, a scruffy Level 1 Squire, entered with high hopes. He battled a few slimes, found a handful of coins, and—crucially—didn't die immediately. As he left, he tossed a copper coin into the entry fee bucket. Satisfaction: 100%. The word began to spread. The Art of the Squeeze Dungeon Tycoon