Play Poseidon Wars 3-D Online
You're a rookie sub captain scanning radar blips, sweating as missiles close in—dodge, fire torpedoes, pray your fuel holds out. That rank-up chime after surviving a dogfight? Pure relief.

Game Overview
Poseidon Wars 3-D is one of those early Sega Master System games that somehow makes staring at a radar screen feel tense. You start as a fresh navy cadet, and the only way to climb the ranks is by taking your submarine out and blowing up everything in sight—enemy ships, choppers, even jets buzzing overhead. The catch? They’re all gunning for you too, and dodging missiles while trying to line up your own shots gets pretty frantic.
The radar and sonar are your lifelines—without them, you’d just be blindly drifting around waiting to get hit. Fuel’s tight, but some enemies drop extra when you take them down, so you’ve got to pick your battles. It’s simple, but there’s something satisfying about watching your rank tick up after each successful mission. Just don’t get too cocky—one bad run-in with a torpedo, and it’s game over.

Download Poseidon Wars 3-D ROM
You can download this ROM to play Poseidon Wars 3-D offline using an Sega master system emulator (Top Emulators).
*This ROM is provided for backup and educational purposes only.