he SG-1000 port of N-Sub. The object of the game is to maneuver an on-screen submarine, the "N-Sub," with the joystick and sink the enemy fleet with torpedo fire in the Cobalt Blue Sea. Torpedoes can be fired vertically or horizontally by means of two separate 'FIRE' buttons and 3 torpedoes can be fired in rapid succession by keeping the button depressed. The enemy ships attack the N-Sub with missiles, torpedoes and depth charges. One round is over after the attack by the enemy fleet of twelve ships (No. 1 Fleet Black, No. 2 Fleet Blue) and the loop attack by the enemy destroyer. Enemy attack gains in ferocity with each new round. Bonus points are awarded if the fleet of twelve ships and the destroyer are destroyed. One extra N-Sub is added if players attain high score. The game is over when all of a player's N-Subs are sunk.
N-Sub
SG-1000 · 1983 · NTSC-U · Shooter
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What it's actually worth
The three-tier spread, verified comparable sales, and where this title sits inside its cohort. Live snapshot lives above in Pulse; this is the time-and-context layer.
The same game at three prices — Loose, CIB, and Sealed on one ruler. The scale is logarithmic: each gridline step is 10×, so the distance between bars shows the size of the jump between tiers.
No verified comparable sales in window. Real comp data integration (Heritage / Goldin / eBay Insights) ships V15.22+.
No verified comparable sales in window. Real comp data integration (Heritage / Goldin / eBay Insights) ships V15.22+.
No verified comparable sales in window. Real comp data integration (Heritage / Goldin / eBay Insights) ships V15.22+.
Is what you're holding real
Documented variants, identifying marks, and the print-vs-reprint discriminator. Pick a variant to focus the walkthrough; the Companion can talk you through your own copy.
Production reference
No production variants are documented for this title yet. The identifying marks below cover the title's first-print and reprint signals across all tiers.
Production reference
No production variants documented for this title yet. Identification reads against the title's known print signals across all tiers.
No documented marks for this tier yet.
No documented marks for this tier yet.
No documented marks for this tier yet.
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