Captains!
By now, Superships have been through several different rounds of live testing, starting with Grand Battle in Update 0.10.5, and followed by their presence in the 5th season of Ranked, in Co-op battles since 0.10.10, and in Randoms since 0.11.0. In Update 0.11.3, Superships will finally exit testing and make a permanent appearance in the national tech trees.