One of the most unusual RTS games ever released was K-D Labs' Perimeter. The sci-fi themed game features such features as deformation of the game's level terrain and the ability for small units to literally merge together to form a new and larger unit. Now K-D Labs has officially announced plans for a full sequel, called Perimeter 2: New Earth.

Due for release sometime this fall, the developer has already launched its official web site with lots of info, screenshots and a trailer for the game (while the Flash based trailer works there's some kind of bug in the downloadable version of the trailer). The merging of units is back as a feature as is the weird art design, some new RPG-lite elements and more. There's no word yet on who will be publishing the sequel (Codemasters handled the duties for the original game).