Sentinel
55
FunAverage
R7
RarityVery Rare
Market Value
Loose$31
Complete$75
New—
Based on recent market activityUpdated Sep 5, 2026
Market Value
Loose$31
Complete$75
New—
Based on recent market activityUpdated Sep 5, 2026
Sentinel
RARITY
R7
Very Rare
Top 27% of Atari 2600
FUNFUN FACTOR
55
Average
Top 55% of Atari 2600
MARKET VALUEUpdated Sep 5, 2026
Jun 15
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Aug 28
Today
Loose value historyBased on recent market activity
Listings
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Value History
$78
$62
$45
$28
Jun 15
Jun 23
Jul 1
Jul 10
Jul 18
Jul 26
Aug 3
Aug 12
Aug 20
Aug 28
Today
Rarity Insight
R7 on the rarity scale (R1 - R10)
We do not see these often, so finding the right one takes patience.
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
Sentinel is an action & adventure game for the Atari 2600, released in 1990. A loose copy sells for around $31, and complete in box $75. We rate it R7 (Very Rare), a scarce Atari 2600 title that does not turn up often, with a Fun Factor of 55.
