Sea Monster — Atari 2600 Price & Value
Atari 2600What Sea Monster for Atari 2600 is worth — loose cart, complete in box, and sealed.
Sea Monster value — Loose $69 · Complete (CIB) $135 · Sealed (new) $203. Prices updated July 2026.
Monthly CIB value, based on sold comps.
See the actual sold listings on eBay ↗Live on eBay right now
Expired listings — price reference
Tested! US Seller. Seamonster NTSC By Puzzy Atari 2600 Rare Rarity 9 Game 
eBay removes ended listings after ~90 days — we keep the prices. Look up finds current listings for the same item.
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Price data verified against · 1
Game details
- Brand
- Atari
- Platform
- Atari 2600
- Genre
- Action & Adventure
Sea Monster (Atari 2600) resale value
A loose copy of Sea Monster averages around $69. A complete-in-box (CIB) copy — game, box, and manual — runs about $135, and a factory-sealed copy commands $203.
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 | $69 | eBay sold comps |
| Complete (CIB) | $135 | eBay sold comps |
| Sealed (new) | $203 | eBay sold comps |
| Graded (WATA/CGC) | $223 | eBay sold comps |
| Live asking — low / typical / high | $103.95 / $164.99 / $164.99 | 2 live eBay listings ↗ |
Market check: As of September 12, 2026, 2 live eBay listings ask $103.95–$164.99 (median $164.99).
Frequently asked questions
- What is the going rate for a loose copy of Sea Monster?
- A loose copy of Sea Monster for Atari 2600 is currently valued around $69.
- How much more is a sealed copy worth compared to a loose one?
- A sealed copy is significantly more valuable, retailing for $203 compared to the $69 for a loose version.
- Can I expect to pay more for a complete-in-box copy?
- Yes, a complete-in-box copy of Sea Monster sells for $135, offering more value than just the loose cartridge.
