4000 Metres Down: Dive To The Titanic
Huh, not sure how we missed this before now. PCG points out that Excalibur - those kings of random simulation publishing - released Dive To The Titanic, or DIVE to the TITANIC, to give it the proper formatting, which is a game about piloting a deep-sea mini-sub to explore the wreck of the Titanic. The trailer (in the depths below) is ludicrously hyperbolic, and the game looks pretty full on. Vicarious claustrophobia feelings, ahoy!