The three field generators alter the rules within the territory where they are located and, where there is a conflict, take precedence over alien tech card effects.


Isolation Field

The Isolation Field nullifies a territory's bonus. The first player to discard a Stasis Beam card will place the Isolation Field counter on a territory of their choice. Any subsequent player who discards a Stasis Beam card will move the counter to another territory.

Example: If the Isolation Field is placed on Pohl Foothills, the player who controls that territory does not receive the "pay one less fuel than normal on each alien tech card you use" bonus and the bonus is not available to a player using a Data Crystal card.


Positron Field

The Positron Field awards one victory point to the player controlling the territory where it is located. The first player to discard a Data Crystal card will place the Positron Field counter on a territory of their choice. Any subsequent player who discards a Data Crystal card will move the counter to another territory.

Example: If the Positron Field is located on Herbert Valley and the green player controls Herbert Valley, then the green player receives one additional victory point.


Repulsor Field

The Repulsor Field prevents colonies from being added to or removed from the territory on which it is located. The Repulsor Field does not prevent its own movement or removal, nor does it prevent the movement or removal of any other field generator that is also on that territory.

The first player to discard a Gravity Manipulator card will place the Repulsor Field counter on a territory of their choice. Any subsequent player who discards a Gravity Manipulator card will move the counter to another territory.

Example: If the Repulsor Field is on Asimov Crater then no new colonies may be added on that territory and the colonies already there cannot be swapped or removed by discarding a Polarity Device or Orbital Teleporter card.


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