From the back of the box:
The storytelling adventure game for overactive imaginations!
In Gentlemen Thieves, you are given Tools like a Grappling Gun, a Battering Ram, or a Disguise Kit. You can use them in any way you can imagine! Face Traps like the Giant Moat Filled With Barbed Wire or the Featureless White Room. How will you get through? Succeed and steal powerful Loot cards and Gold coins from the tricky Thieves' Dens. The winner is the player who steals the most Gold! Plus, Fill in the Blanks to invent your own Tool!
Gentlemen Thieves is a hilarious, accessible game with almost no math!