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Dive, dive! This 1989 DOS simulator puts you in control of a nuclear submarine, though most of the action involves pushing buttons and waiting very patiently. Think of it as the “Microsoft Excel of naval warfare,” only with more torpedoes. The tension builds as you track enemy ships, sneak through sonar nets, and try not to surface into a helicopter’s waiting arms. It’s slow, stressful, and surprisingly immersive - like being locked in a metal tube where one wrong click could ruin your entire day. For strategy nerds and Cold War fantasists only.