Each 99¢ (80 Microsoft Points) pack contains two "highly polished and balanced" new levels with a campaign mode, four challenge modes and new achievements. The first pack will be released on June 2, with the other three following weekly on Wednesdays.
Level descriptions and the complete Resurgence release schedule follow below.
Defense Grid: Resurgence Map Pack 1 - June 2, 2010
Service Interruption and Height of Confusion
Two new challenging Defense Grid environments are the first two released in the Resurgence series. An obstructed road to the core housing gives the aliens a significant advantage in Service Interruption. Choose your towers wisely! Height of Confusion has a wide open surface, making for endless possibilities! Build anywhere you want in your defense of the power cores!
Defense Grid: Resurgence Map Pack 2 - June 9, 2010
Risk Exposure and Roundabout
Don't miss out on the next two Resurgence maps. Risk Exposure will allow you to discover your ability to defend two independent power core housings! Limited build spaces will test your skills as you divide your resources to discover optimal tower placement. On Roundabout, you will be faced with numerous possibilities for pathing and a variety of elevation changes. This one will have you going in circles to contain the alien menace!
Defense Grid: Resurgence Map Pack 3 - June 16, 2010
Urban Planning and Tactical Diversion
It's the third of four great map packs in the Resurgence series. Urban Planning is a dense environment with restrictive build spaces, forcing difficult decisions against continuously attacking hordes. In Tactical Diversion, survey the small, snow covered platform and consider numerous possibilities. But be prepared for the aerial assault!
Defense Grid: Resurgence Map Pack 4 - June 23, 2010
Kill Zone and Outflow
The final installment of the Resurgence series includes two more environments sure to challenge your tactical planning. In Kill Zone, will you construct your defenses near the spiral road in, the spiral road out, or the open platform in the middle? Perhaps all three! But you'll need to be on your toes to deter the invaders. Overflow has numerous connected platforms that will provide countless options to turn back the enemies. Will you be able to keep the cores safe?