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

Antimass Deflectors

Your ships can move into and through asteroid fields. When other players' units use SPACE CANNON against your units, apply -1 to the result of each die roll.
Technology – Propulsion

Propulsion

Your ships can move into and through asteroid fields.

When other players' units use SPACE CANNON against your units, apply -1 to the result of each die roll.

Source: Base game

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  • The −1 applies to space cannon rolls during both the Space Cannon Offense and Space Cannon Defense steps.

Interactions

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Divert Funding

  • If the player returns the Antimass Deflectors technology, their units may remain in and move out of any asteroid fields they are currently in, but cannot move additional units into or through.

Vaults of the Heir

  • If the Mahact player purges the Antimass Deflectors technology, their units may remain in and move out of any asteroid fields they are currently in, but cannot move additional units into or through.