Is Steam Siege Worth Buying in 2026? Investment Guide
Steam Siege booster box analysis: current price £1,261.34, AI rating Overvalued. Full investment breakdown with price history and chase card values.
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⚠ For informational purposes only. Data sourced from eBay UK sold listings and TCG Invest's price pipeline. Not financial advice.
Is Steam Siege Worth Buying in 2026?
Last updated: May 2026 | Era: XY | Status: Active
Quick Verdict
TCGInvest AI Rating: Overvalued (Score: 18/25)
Sealed carries a premium at 447.00x singles value — factor in collector demand.
Current Price
| Metric | Value |
|---|---|
| Booster Box (UK) | £1,261.34 |
| Singles Value (set total) | £282.16 |
| Sealed/Singles Ratio | 447.00x |
| Set Era | XY |
| Print Status | In print |
AI Investment Scores
| Factor | Score |
|---|---|
| Scarcity | 5/5 |
| Liquidity | 5/5 |
| Mascot Power | 3/5 |
| Set Depth | 5/5 |
| Overall | 18/25 |
Scores generated by Groq llama-3.3-70b using live TCGInvest data.
Price History
| Month | Box Price | Singles Value | Ratio |
|---|---|---|---|
| May 2026 | £1,261.34 | £282.16 | 447.00x |
Top Chase Cards
| Card | Raw (GBP) | PSA 10 (GBP) |
|---|---|---|
| Yanmega BREAK | N/A | N/A |
| Xerneas BREAK | N/A | N/A |
| Volcanion-EX | N/A | N/A |
| Gardevoir-EX | N/A | N/A |
| M Gardevoir-EX | N/A | N/A |
Should You Buy Steam Siege?
Current data rates Steam Siege as Overvalued. Monitor price trends before committing significant capital.
Track Steam Siege live prices and scores →
Data sourced from TCGInvest's pipeline of eBay UK sold listings and AI scoring. Updated weekly.
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