Necrom's 688i H/K Command
Offers program information, history, downloads, and guestbook.

The Adrenaline Vault
[4/5] By Emil Pagliarulo. "Turn off the lights and boot up this game, and you'll really feel like you are aboard a nuclear sub, hundreds of feet underwater."

Gamespot
[8.8/10] By T. Liam McDonald. "Considering all that [the game] offers, it is required gaming for naval warfare enthusiasts."