Everyone shares one Adventurer. On your turn, draw a monster (only you see it) and either add it to the dungeon face-down, or set it aside and sacrifice one piece of the Adventurer's equipment. Or pass and sit out the round.
When everyone else has passed, the last player must take the Adventurer into the dungeon with whatever equipment is left. Equipment defeats certain monsters; anything else costs HP equal to its strength. Finish with more than 0 HP for a ⭐; otherwise lose a ❤️. First to 2 stars wins; lose both hearts and you're out.