Market Value
Loose$6
Complete$11
New$47
Based on recent market activityUpdated Sep 5, 2026
Listings
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Value History
$13
$10
$7
$4
Aug 13
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Today
Rarity Insight
R5 on the rarity scale (R1 - R10)
We see these less often than the typical game on this platform.
Platform Rarity DistributionHow rarity works
Nerdy Rank
Nerdy Rank
Ownership Breakdown
0Total Copies
Owned
Owned
ConditionCopiesPercent
Loose
00.0%Complete (CIB)
00.0%New / Sealed
00.0%Graded
00.0%Based on 0 collectors with this game in their collectionView My Collection
Graded Report
No graded listings have been detected
Item Details
Quantum Theory is an action & adventure game for the Xbox 360, released in 2010. A loose copy sells for around $6, complete in box $11, and sealed $47. We rate it R5 (Uncommon+), findable on Xbox 360 with a little looking, with a Fun Factor of 38.
