
The battle between flesh and slime. The extra-terrestrials in this game are anything but friendly. They're slimy monsters that are holding space colonists captive abroad seven alien starships. For one or two players, this super action game challenges you to free the helpless hostages. Search each ship's deadly levels, using flamethrowers and laser cannons to vaporize alien scum. Look for maps to help you find your way. After you've save all the captives from one ship, you must destroy its powerful leader before you can move on to the next ship. Remember, to the aliens, you're slime. And they want you good... and dead.
Our algorithm tracks thousands of verified sales from eBay and other marketplaces. We don't use asking prices, only what buyers actually pay.
We automatically exclude damaged items, reproductions, and extreme outliers to ensure the average is representative of the true market value.
The retro market moves fast. Our database refreshes every day to capture the latest trends and shifts in collector demand.
Confidence Score: High β’ Based on thousands of verified transactions
Currently, the value of a Complete In Box (CIB) copy of Alien Syndrome is estimated around $42.75. For collectors looking for a Loose copy, transactions usually happen around $13.35. The price gap suggests that the box and manual are particularly sought after and hard to find.
Released on NES, this title is an interesting piece for any NES collector. The game's value remains stable, making it a safe bet for your collection.
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The battle between flesh and slime. The extra-terrestrials in this game are anything but friendly. They're slimy monsters that are holding space colonists captive abroad seven alien starships. For one or two players, this super action game challenges you to free the helpless hostages. Search each ship's deadly levels, using flamethrowers and laser cannons to vaporize alien scum. Look for maps to help you find your way. After you've save all the captives from one ship, you must destroy its powerful leader before you can move on to the next ship. Remember, to the aliens, you're slime. And they want you good... and dead.
Our algorithm tracks thousands of verified sales from eBay and other marketplaces. We don't use asking prices, only what buyers actually pay.
We automatically exclude damaged items, reproductions, and extreme outliers to ensure the average is representative of the true market value.
The retro market moves fast. Our database refreshes every day to capture the latest trends and shifts in collector demand.
Confidence Score: High β’ Based on thousands of verified transactions