Alliance trap units are purely stationary defenders that can only be recruited and deployed in towers belonging to an alliance. They cannot be moved or transported to other habitats. Recruiting trap units consumes alliance resources and only one recruitment queue can be active per tower. This recruitment is restricted to players with the “Captain” role.

Trap units cannot be wounded in battle and have no revive option. The number of trap units that a tower can recruit depends on the level of the tower, with higher levels increasing the unit limit and the size of the queue.