Perimeter is the self-appointed rebirth of the Real Time Strategy genre. It employs three innovations to the genre to set it apart from all other RTS games.
For one, you will only be able to command five squads of three types of 'specialists' - Soldiers, Officers and Technicians - which are able to morph into different units, if the squad composition matches the requirements for that type of unit.
You also have the ability to terraform the landscape around you, raising hills or excavating valleys to zero level, where you may then build structures.
Finally, the feature that gives the game its title, you are able to set up an impenetrable shield - perimeter - that renders anything in its radius invulnerable as long as that shield is up. It will drain your energy (the game's only resource) very quickly, so you must use it sparingly if you wish to survive.
Perimeter is an RTS game that redefines the formula, with more emphasis on Strategy than Micromanagement.
The engine treats the landscape as a pseudo-voxel (full voxel effects being used in games like Outcast), meaning that it will be able to be sculpted on the fly. It is made of one million polygons at any time.