Unexplored [official site] is one of my favourite new dungeon-crawling roguelikes, using smart procedural generation to create levels that don’t play like anything else out there. There are puzzles and monsters and loot chests, and I love it dearly even though it isn’t even slightly turn-based. I also love Alien, even though it seems to have become a scab that Ridley Scott can’t stop picking at.
The latest DLC for Unexplored, Ripley Run, puts some Alien into the game. And it’s free.