TI4 Rules DeskTwilight Imperium 4
Living Rules Reference · v2.0
40

Game Round

A game round consists of the following four phases:

  1. Strategy Phase
  2. Action Phase
  3. Status Phase
  4. Agenda Phase
Players skip the agenda phase during the early portion of each game. After the custodians token is removed from Mecatol Rex, the agenda phase is added to each game round.
Player turns occur during the action phase.
Abilities that last until the end of a player’s turn do not persist for the duration of a game round or into the other phases of that game round. Those effects end at the end of that player’s turn, before the next player’s turn begins.

Source: Twilight Imperium: Fourth Edition — Living Rules Reference v2.0 (September 22, 2020), page 19. Rules text reproduced verbatim; the rulebook’s diagrams are omitted.