Games like Project Nautilus

Games like Project Nautilus include Five Nights at Freddy's: Security Breach, Slime Rancher, Subnautica, Indiana Jones and the Great Circle, and Fallout 4. We matched them by the tags players give Project Nautilus on Steam (First-Person, 3D, Exploration, Underwater, and Adventure): closest matches first, and among equally close ones the better-known games.