Altered Beast
66
FunDecent
R2
RarityCommon
Market Value
Loose$7
Complete$19
New—
Based on recent market activityUpdated Sep 5, 2026
Market Value
Loose$7
Complete$19
New—
Based on recent market activityUpdated Sep 5, 2026
Altered Beast
RARITY
R2
Common
Top 93% of Sega Master System
FUNFUN FACTOR
66
Decent
Top 39% of Sega Master System
MARKET VALUEUpdated Sep 5, 2026
Apr 11
Apr 26
May 11
May 25
Jun 9
Jun 24
Jul 9
Jul 23
Aug 7
Aug 22
Today
Complete value historyBased on recent market activity
Listings
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Value History
$23
$18
$12
$6
Apr 11
Apr 26
May 11
May 25
Jun 9
Jun 24
Jul 9
Jul 23
Aug 7
Aug 22
Today
Rarity Insight
R2 on the rarity scale (R1 - R10)
We see these listed constantly, in a multitude of conditions.
Platform Rarity DistributionHow rarity works
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
Altered Beast is a beat'em up game for the Sega Master System, released in 1989. A loose copy sells for around $7, and complete in box $19. We rate it R2 (Common), among the easier Master System games to find, with a Fun Factor of 66.
