Alien Syndrome — Sega Master System Price & Value
Sega Master SystemWhat Alien Syndrome for Sega Master System is worth — loose cart, complete in box, and sealed.
Alien Syndrome value — Loose $11 · Complete (CIB) $20 · Sealed (new) $90. Prices updated July 2026.
Platform · Sega Master System
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Complete-in-box price history
Monthly CIB value, based on sold comps.
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Game details
- Brand
- Sega
- Platform
- Sega Master System
Alien Syndrome (Sega Master System) resale value
A loose copy of Alien Syndrome averages around $11. A complete-in-box (CIB) copy — game, box, and manual — runs about $20, and a factory-sealed copy commands $90.
What drives the price
Condition is everything: a clean, unscratched label, an intact box without crushing, and the original manual can swing the value 30–50%. Test that the game works before you buy or sell.
Price guide
What this actually trades for — sold values by condition vs. what sellers are asking today
| Condition | Value | Based on |
|---|---|---|
| Loose | $11 | eBay sold comps |
| Complete (CIB) | $20 | eBay sold comps |
| Sealed (new) | $90 | eBay sold comps |
| Graded (WATA/CGC) | $264 | eBay sold comps |
Frequently asked questions
- What is the going rate for a loose copy of Alien Syndrome?
- A loose copy of Alien Syndrome for the Sega Master System currently sells for approximately $11.
- How much is a sealed copy worth?
- Sealed copies of Alien Syndrome are highly valued and sell for around $90.
- Is the complete-in-box version worth more than loose?
- Yes, the complete-in-box version of Alien Syndrome is valued higher at $20 compared to the loose version.
