Coming sometime in Summer 2009, Vogster Entertainment has announced a new tower-defense style game for WiiWare. Robocalypse: Beaver Defense features a madcap storyline from the writers behind Spongebob Squarepants.

In essence it's a follow-up to the original Robocalypse, a real-time strategy game which was released on the DS last year.

This new WiiWare outing will include:

• Upgradable skills, weapons, hero units and defenses.
• Single player mode.
• Up to 4-way multiplayer.

Robocalypse: Beaver Defense will be released both in the US and in Europe. Some screenshots are already up.