Steam Siege Booster Box

XY - Steam Siege

Unopened · English · Booster Box

Market price$1,299.99Oct 11, 2026

90 days change+10.4%+$122.50

Steam Siege Booster Box: $1,299.99 estimated unopened market price as of Oct 11, 2026. Up 10.4% over the 90-day window ending Oct 11, 2026.

Provider quote for the unopened whole product. The SKU name is shown exactly as supplied.

Market temperature

90D

+72Blazing

Price change+10.4%

Unopened · 90 days

Movement reflects this product's own price change only; it does not compare against other sealed products.

Unopened

History is shown as supplied by the provider and is not verified for comparable returns.

Loading sales…