The surprise Xbox Live Arcade hit, Toy Soldiers, by Signal Studios which combined elements of RTS and tower defense with a World War I toy soldiers theme is getting some additional content. The downloadable content pack is to be called “Invasion!” and it will arrive next week.

In the “Invasion!” mode, players will control the Germans against the British who apparently have some new weapons that have been discovered. The DLC pack will add a number of new units, including knights, fire trucks, space tanks, flying saucers, space-infantrymen, and RoboBob, which is a new boss unit. The DLC pack will include three new single player game modes, as well as two new multiplayer maps. In addition, the DLC will add an additional Survival level to try your hand at.

The DLC content packs quite a lot of content into the 400 Microsoft Points that it will cost to acquire it. Of course, those who do opt to purchase the DLC pack will have the chance to earn an additional 50 achievement points that are related to the Invasion! DLC pack.