Living Rules Reference · v2.0
28
Deals
A deal is an agreement between two players that may or may not include a transaction that involves physical components.
Players can make deals with each other at any time, even if they are not neighbors. However, deals that include a transaction must follow the rules for transactions, including that the players be neighbors.
Deals are binding or non-binding according to the conditions of the deal.
If the terms of a deal can be resolved immediately, it is a binding deal. When a deal is binding, a player must adhere to the terms of the agreement and whatever transactions, if any, were agreed upon.
- The results of playing an action card, including the act of successfully resolving a card, are not instantaneous and cannot be guaranteed. They cannot be part of a binding deal.
If the terms of a deal cannot be resolved immediately, it is a non-binding deal. When a deal is non-binding, a player does not have to adhere to any part of the agreement.
Source: Twilight Imperium: Fourth Edition — Living Rules Reference v2.0 (September 22, 2020), page 16. Rules text reproduced verbatim; the rulebook’s diagrams are omitted.