- 01Value the lot
- 02Bid or withdraw
- 03Confirm the winner
- 04Pay and advance
Open bidding and withdrawal
Visible bids rise step by step; players respond by raising or withdrawing, and winning consumes future purchasing power.
The player's decision
Raise to win this item or withdraw to save for a better-fitting later lot?
Original scenario
Original: three players have ten coins for three component cards valued differently by their orders; overspending early can prevent finishing a set.
Start with this prototype
Build three local bidders, three lots and visible ten-coin budgets. Require raises of one and no reentry after passing. Define unsold lots and winner payment, then score fictional orders.
Change one variable
Vary previews of later lots to compare budget planning under different information.
What to observe in a playtest
Reject insufficient raises, over-budget bids and withdrawn players; confirm and charge the winner once.
Take the full design card
Includes rules, scope, tuning questions and sources for further planning. It does not create a project automatically.
Original analysis · version 1
Common pitfall
Rewarding auction wins alone encourages reckless buying instead of value-versus-budget decisions.
Observations and sources
Cases refer to public documentation. Developers and community wikis are credited separately; document review is not a claim of hands-on testing.
- Modern Art
Official rules include open and other auction forms, changing information and pacing for comparable goods.
- For Sale!
The publisher separates bidding to buy from a later selling phase; paying more need not yield more profit.
Brief for the studio
Opens the AI studio with the brief below in the input. You can edit it. Nothing starts automatically.
Build three local bidders, three lots and visible ten-coin budgets. Require raises of one and no reentry after passing. Define unsold lots and winner payment, then score fictional orders.
Covers are original AI-generated style illustrations. Game names reference publicly visible design choices and remain the property of their owners. This atlas does not supply screenshots or assets from those games. Prompts and combinations are original drafts for new games.