11bit Studios' tower-offense sequel Anomaly 2 will launch on May 15. The sequel adds new units and the ability for them to morph into a secondary class type, as well as incorporating live multiplayer for the first time in the series.

Anomaly 2 is the sequel to Anomaly: Warzone Earth and its expansion, Anomaly: Korea. Unlike its predecessors, Anomaly 2 will forgo mobile platforms at launch, favoring Steam for PC, Mac and Linux. All pre-orders are currently 10 percent off the standard $15 asking price.

This article was originally published on Joystiq.