Both Uboat and Wolfpack are in early access by small dev teams, so it helps if players are supportive and patient. Both games have a lot to offer a good subsimmer.
Wolfpack is currently a co-op game where you & your crew manually do all the major operations in the boat: diving, observation, navigating, TDC set up and radio/sonar. No time compression, no warping. No AI crew to do your TDC for you.
We are working on a solo player option where you can assign the AI crew to change depth/speed/course so a single player can manage the boat alone. That will use a dash UI for the player to make these changes without requiring them to run all over the control room.