This is a demo of the old Dungeon Smasher game. I'll find the full game and upload it here as soon as I can.
From what I see, your goal is to complete objectives to reach the next floor. In the demo, they don't give any clues. Die and start over again.
(game is incomplete, I'll finish it when I can)
Arrow keys to move
Z to roll
X to attack
Typical disclaimer: this game doesn't reflect final product