Steam Siege · Collection · 2016 · Sealed
Market price · Sealed
$644
Steady · 21dvia TCGplayer, updated Oct 12, 2026
#4 of 17 priced sealed products from Steam Siege
The cards inside
Every Steam Siege card has its own daily price guide — all 116 of them.
Steam Siege card list & prices →Mega Gyarados Collection Box sits at $644 on TCGplayer today. Among the 17 Steam Siege sealed products we price, it sits 4th. The set's priciest sealed product is the Steam Siege Sleeved Booster Case at $24,999. We've logged its price since May 9, 2026: $523 then, $644 now (up 23.2%). Over the last 90 days it's up 23.2%, from $523. Since May 2026 it's run as high as $644 (September 2026) and as low as $523 (May 2026). Right now it's the priciest it's been since May 2026.
What it actually sells for
Our chart tracks TCGplayer's market price — a listing statistic, not a receipt. Completed sale prices live on eBay itself: see recent sold listings →
Elite Trainer Box
Elite Trainer Box$1,800
Booster Box
Booster Box$1,300
XY Steam Siege Sleeved Booster Pack
Sleeved Booster Pack$39.45
Booster Pack
Booster Pack$31.71
![Battle Heart Tin [Pikachu EX] — sealed Pokémon TCG product](/_next/image?url=https%3A%2F%2Fproduct-images.tcgplayer.com%2Ffit-in%2F437x437%2F123441.jpg&w=3840&q=75)
Battle Heart Tin [Pikachu EX]
Tin$550
![Battle Heart Tin [Magearna EX] — sealed Pokémon TCG product](/_next/image?url=https%3A%2F%2Fproduct-images.tcgplayer.com%2Ffit-in%2F437x437%2F123440.jpg&w=3840&q=75)
Battle Heart Tin [Magearna EX]
Tin$500
![Battle Heart Tin [Volcanion EX] — sealed Pokémon TCG product](/_next/image?url=https%3A%2F%2Fproduct-images.tcgplayer.com%2Ffit-in%2F437x437%2F123442.jpg&w=3840&q=75)
Battle Heart Tin [Volcanion EX]
Tin$475
![Steam Siege 3 Pack Blister [Azelf] — sealed Pokémon TCG product](/_next/image?url=https%3A%2F%2Fproduct-images.tcgplayer.com%2Ffit-in%2F437x437%2F120704.jpg&w=3840&q=75)
3 Pack Blister [Azelf]
Blister$355
![Steam Siege Single Pack Blister [Lucario] — sealed Pokémon TCG product](/_next/image?url=https%3A%2F%2Fproduct-images.tcgplayer.com%2Ffit-in%2F437x437%2F120702.jpg&w=3840&q=75)
Single Pack Blister [Lucario]
Blister$64.06
![Steam Siege Single Pack Blister [Floette] — sealed Pokémon TCG product](/_next/image?url=https%3A%2F%2Fproduct-images.tcgplayer.com%2Ffit-in%2F437x437%2F120703.jpg&w=3840&q=75)
Single Pack Blister [Floette]
Blister$37.29
About $644 sealed. That's the TCGplayer market price, updated Oct 12, 2026. Condition matters even for sealed products — crushed corners or a torn seal knock the value down. Every Steam Siege card price →
Up about 23% over the last 3 months — from $523 to $644 (TCGplayer market price). The chart on this page has the freshest line.
The highest market price we've logged is $644 — that was September 2026. Our tracking starts May 2026, so that's the record on our watch, not an all-time record.
eBay is the easiest place — this page links to a prefilled search for Mega Gyarados Collection Box. For sealed products, check the photos for the factory seal, read the listing for "resealed" wording, and check the seller's rating before you bid. That's the rule.
