{"schemaVersion":1,"record":{"key":"mechanic/deck-building--family-market","type":"mechanic","id":"deck-building--family-market","lang":"en","title":"Markets and card offers","summary":"A market determines which cards are available now. Offer size and refresh rules affect planning and the value of passing.","updatedAt":"2026-10-21","status":"active","url":"https://gamemechanics.pro/en/knowledge/mechanic/deck-building--family-market/","jsonUrl":"https://gamemechanics.pro/api/v1/knowledge/en/mechanic/deck-building--family-market.json","markdownUrl":"https://gamemechanics.pro/content/knowledge/en/mechanic/deck-building--family-market.md","aliases":["Card offers"],"tags":["Deck building","Core rules"],"sourceIds":["source-c4ddb750dc94a3b4","source-7f09c8a736762f4f"],"sources":[{"id":"source-c4ddb750dc94a3b4","title":"Star Realms rules","url":"https://www.starrealms.com/learn-to-play","verifiedAt":null},{"id":"source-7f09c8a736762f4f","title":"Slay the Spire","url":"https://www.megacrit.com/press-kits/slay-the-spire/","verifiedAt":null}],"sections":[{"id":"principle","title":"How it works","body":"What cards are available for receipt and how the offer changes."},{"id":"variants","title":"Variants","body":"### Variants and applications\n\n<a id=\"family-market-variants\"></a>\n\n- Fixed supply. Rule: The open set of card types is known in advance; Players purchase copies from their respective stacks. <a id=\"variant-market-01\"></a>\n- Market row. Rule: There are several cards on the market, and the vacant spaces are replenished from the common deck. <a id=\"variant-market-02\"></a>\n- Split pile. Rule: The type of card available changes as the stack is sorted; Bottom cards are temporarily unavailable. <a id=\"variant-market-03\"></a>\n- Private market. Rule: The offer is available only to a specific player or his team. <a id=\"variant-market-04\"></a>\n- Blind purchase. Rule: The player pays for a card or package without knowing the exact contents until receipt. <a id=\"variant-market-05\"></a>\n- Reroll. Rule: For a fee or through an effect, the player replaces part of the market or reward options. <a id=\"variant-market-06\"></a>\n- Reservation. Rule: The card is temporarily assigned to the player for later receipt. <a id=\"variant-market-07\"></a>\n- Market banish. Rule: The player removes an available card, revealing a new one or denying the opponent the opportunity to receive it. <a id=\"variant-market-08\"></a>\n- Pool manipulation. Rule: Unlocking, eliminating, or changing the weight of card categories affects future rewards and merchandise. <a id=\"variant-market-09\"></a>\n- Tiered supply. Rule: New market levels, rarities or card sets become available after meeting the conditions. <a id=\"variant-market-10\"></a>\n- Conveyor market. Rule: Cards move in position, change price or disappear after a set time. <a id=\"variant-market-11\"></a>\n- Limited supply. Rule: Number of copies is limited; the acquisition of a card by one player reduces the capabilities of others. <a id=\"variant-market-12\"></a>"},{"id":"context","title":"Context and limits","body":"Design taxonomy of basic rules and options, including card operations and external systems. The number of entries is not a generally accepted classification of independent mechanics."}],"relations":[],"placements":[{"catalogId":"deck-building","id":"family-market","title":"Deck building","url":"https://gamemechanics.pro/en/mechanics/deck-building/#family-market","categoryIds":["section-1"]}],"supersededBy":[],"attributes":{"preview":{"updatedAt":"2026-10-21","title":"Card offers","description":"A market determines which cards are available now. Offer size and refresh rules affect planning and the value of passing.","image":{"src":"images/mechanics/slay-the-spire-shop.webp","width":1440,"height":810,"game":"Slay the Spire","sourceUrl":"https://www.megacrit.com/press-kits/slay-the-spire/","originalUrl":"https://www.megacrit.com/images/ss4.jpg","credit":"Mega Crit","rights":"© Mega Crit. All rights reserved.","caption":"The merchant’s selection","alt":"Slay the Spire: differently priced cards and additional services at one merchant.","markers":[{"x":39,"y":29,"label":"The currently available card selection"},{"x":38,"y":50,"label":"Prices let the player compare offers"}]},"tips":["Explain when an offer will refresh or disappear.","Keep passing up an offer a meaningful option."],"examples":[{"title":"Slay the Spire","url":"https://www.megacrit.com/press-kits/slay-the-spire/"}]}},"endsAt":null,"provenance":"Original editorial design catalog consolidated from project discussions on 2026-10-20. Complete discussion item lists and contextual limitations are preserved; linked primary sources support specific techniques, not the entire classification. English translation was prepared with machine assistance and editorial review.","license":"CC-BY-4.0","codeLicense":"MIT","attribution":"gamemechanics.pro contributors","catalogKey":"catalog/deck-building"}}