The premise of this game, diving into mysteriously appearing structures, pushed deeper and deeper into uncharted danger driven by capitalistic pressure, is really strong and makes for a very engaging jump into the game. While the atmosphere stays heavy and thick, the game very quickly devolves into a standard dungeon crawler, very repetitive and without any unique ideas.
Narratively it cant follow up on the promises made by the premise either. Undernauts focus quickly shifts from commentary on work culture and capitalism to shockvalue gore and anime nonsense. Also some truly gross female character designs in there