The Dungeon of Irvilio
"A bad wizard traps adventurers in an exotic dimension. The mysterious Guardian keeps them in a dungeon infested by big bugs, and shadows."
You can see a lot more of Kosmic's work, and even view the original "Le donjon d’Irvilio"
on the site: https://kosmicdungeon.wordpress.com/
Kosmic Dungeon whipping out a 10 minute map!