Grade Matrix
PSA
PSA 6
-
PSA 7
$26
PSA 8
$26
PSA 9
$16
PSA 10
$35
PSA 10: PriceCharting; refreshed Sep 10, 2026
CGC
CGC 8
-
CGC 9
-
CGC 10
$21
CGC P10
-
Availability
Availabilityi
5/10G: —
Graded: insufficient data · Sales per year: ~182 sales/yr · Graded copies: 7
TCGplayer Price History
NormalProduct 85540Fetched Sep 5, 3:33 AM
TCGplayer market
$0.29
Latest avg sale
$0.21
Units sold
165
Card Value FAQ
How much is Foongus (Steam Siege #12) worth?
GemDelta shows Foongus (Steam Siege #12) at $0.29 market price (TCGplayer market). Its Delta multiple is 24.8x.
How much is a PSA 10 Foongus (Steam Siege #12) worth?
A PSA 10 Foongus (Steam Siege #12) is currently shown at $34.77. GemDelta labels this as an unverified PriceCharting guide fallback rather than verified recent sales.
Is Foongus (Steam Siege #12) worth grading?
GemDelta records a 28.6% gem rate for Foongus (Steam Siege #12), with 2 PSA 10 copies out of 7 total PSA grades and a 24.8x Delta. That describes the grading profile; it is not financial advice.