Portal to Rigel 7

The  is a limited-time premium building first released during the Treehouse of Horror XXV Event where 6 Rigellians spawned every 8 hours. After the event, it earns at a premium rate.

It was re-released for the Treehouse of Horror XXVI Event, the Deep Space Homer 2016 Event, the SciFi 2016 Event and The Invasion Before Christmas 2017 Event, though for a smaller price than before.

It was re-released on November 13, 2019, as part of Act 4 of the Treehouse of Horror XXX Event. It was the second prize to be won in the event's Act 4.

Event Quest Based
Kodos
 * Sabotage Ultranet Machine - 8h

Trivia

 * It can be placed on grass, pavement, dirt, beach, boardwalk, pier, edge of boardwalk, or edge of pier.