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

The Panopticon

This unit is placed in the space area of any non-Fracture, non-supernova system that does not contain planets, instead of on a planet. If this unit is blockaded, destroy it.
The EmpyreanUnit – Structure – Monument

Monument

This unit is placed in the space area of any non-Fracture, non-supernova system that does not contain planets, instead of on a planet.

If this unit is blockaded, destroy it.

PRODUCTION 1

Placement
Space area – see the card

Source: Monuments