688(I) Hunter/Killer

Submarine warfare simulation with crew training and customizable weapons loadouts

Sonalysts · Published by Strategy First · Released Oct 26, 2006

Reviews: Very Positive; 81% of 231
Recent reviews: Not enough recent
Players: 2; daily peak, Nov 4, 2026
Steam Deck: Unsupported
Last update on Steam: Unknown; no patch notes on Steam
Minimum PC: –; not published

What is 688(I) Hunter/Killer?

You command a submarine through its sonar, helm, target analysis, and weapons stations in this naval combat simulation. You undertake training exercises, standalone missions, or a campaign based on real-world political situations, and can fight other players online or over a local network.

For you if...

+you enjoy slow, methodical military strategy rather than quick reactions

Not for you if...

−you prefer arcade combat over managing individual submarine stations

What players say

81% of 231 reviews are positive

Players praise the simulation's realism and technical depth. Common complaints concern the steep learning curve and dated graphics. A recent reviewer also reports that the fixed screen resolution leaves parts of the game cropped off-screen.

Screenshots and trailer