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Sealed Price Tracker
Steam Siege Booster: Price & Value
Steam Siege Booster currently sells for 23.00 € on Cardmarket (realistic market price, 2026-08-19). The price has cooled 7.8% over the last 30 days. That is 92% of its all-time high of 24.99 €.
Current price23.00 €
7 days▲ +0.0%
30 days▼ -7.8%
90 days▼ -4.2%
All-time high24.99 € (92%)
| Set | Steam Siege |
|---|---|
| Category | Booster Packs |
| Release date | 2016-08-03 |
| Contents | 1 booster · 23.00 € / booster |
| Since release | +476.4% vs. 3.99 € retail price |
| Supply | 38 listings on Cardmarket (+2.7% vs. 30 days ago) |
Price history (90 days)
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Frequently asked questions
- Is Steam Siege Booster going up in value?
- The realistic market price moved -7.8% over the last 30 days and -4.2% over 90 days and currently sits at 23.00 €, which is 92% of its all-time high of 24.99 €.
- Is Steam Siege Booster worth keeping sealed?
- Steam Siege Booster launched on 2016-08-03 at 3.99 € recommended retail price and trades at 23.00 € today, +476% against its launch price after roughly 10 years on the shelf. That is well ahead of the catalogue, where the typical out-of-print product has roughly tripled since release.
- How much do you pay per booster with Steam Siege Booster?
- Steam Siege Booster contains 1 booster packs, so at 23.00 € you pay 23.00 € per booster.
- What was the MSRP of Steam Siege Booster?
- Steam Siege Booster launched at 3.99 € recommended retail price. That figure is the European RRP in euro, not the US MSRP in dollars, which is usually quoted separately for the same product. It currently trades at 23.00 € on Cardmarket.
- Is Steam Siege Booster getting harder to find?
- There are currently 38 listings on Cardmarket, +3% versus 30 days ago. Shrinking supply with stable prices often precedes a price increase for sealed products.
- How is this price calculated?
- Each price is the median of the five cheapest verified Cardmarket offers, with damaged and fake listings filtered out, so it reflects a realistic market price instead of the lowest outlier.



