Twilight's Fall – a separate game. Twilight Imperium's expansions, mods and rules topics are not part of it.

Psychoarchaeology

You can use technology specialties on planets you control without exhausting them, even if those planets are exhausted. During the action phase, you can exhaust planets you control that have technology specialties to gain 1 trade good.
Technology – Biotic

Biotic

You can use technology specialties on planets you control without exhausting them, even if those planets are exhausted.

During the action phase, you can exhaust planets you control that have technology specialties to gain 1 trade good.

Source: Prophecy of Kings

Versions of this cardSelect one to preview

ClarificationsSelect rulings confidence level

Select rulings confidence level

tirules.com
  • When researching a technology, each planet with a technology speciality can only be used to ignore a single prerequisite.
  • Exhausting planets to gain trade goods can be done at any time during action phase, except when another ability is being resolved.
  • If multiple planets are exhausted, the trade goods are gained one at a time.

Interactions

tirules.com

Uprising

  • If a player has one of their planets with a technology specialty targeted with the Uprising action card, they cannot use Psychoarchaeology in response to gain a trade good.