The following year, Avalon Hill bought the rights to the game, expanded the rules and republished it with new cover art.
[1] At the same time, the anti-submarine player must plot the target's movement three turns in advance.
In Issue 55 of the British magazine Games & Puzzles, Nicky Palmer reviewed the Battleline edition and called it "an excellent simulation of tactical undersea warfare, with varying types of ships, submarines, and weaponry."
Palmer concluded, "Submarine is pleasant and easy to play, with basic rules simple enough for beginners, and an advanced version with enough detail to satisfy the keenest devotee of this type of combat.
"[4] Four years later, in his 1977 book The Comprehensive Guide to Board Wargaming, Palmer added that the game displayed "Admirable accuracy.