Hi! Decided to keep it simple with my theme, definitely not as unique as some other people here.
Theme: Treasure Hunter/ Dungeon plunderer - A sort of tomb raider/ indiana jones type vibe was what I was thinking of.
Some images that sum up the theme:
The Player: The main character is going to be a young male named Leo or some other cool name. This picture is close to what I imagined:
The goal: Unsurprisingly, the goal is for the player to get to the end of the dungeon, avoiding deadly traps along the way, After which he finds fat stacks of loot and becomes filthy rich.