Players will have to build walls, turrets and mobile armies to defend against two wildly different factions of invaders, each requiring very different strategies to overcome.

Over the course of a 23-mission branching campaign, players will unlock new technologies, units and upgrades in order to turn the alien tide, as well as uncover gruelling Survival and Endless challenges for each map. With the odds stacked against them, players can recruit a buddy and tackle the entire game in online co-op, or face down the 44 enemy types solo.

Unlike most tower defense games, Colony Siege allows players to build their fortifications and traps almost anywhere on the battlefield. Walls can be used to funnel enemies into kill-zones and mobile units controlled in traditional RTS fashion can intercept more aggressive foes. It’s a fresh challenge for fans of both regular strategy games and more structured tower defense.

Command your units in battle. Can you survive the enemy onslaught?

Key Features:

• Play the entire campaign in online co-op with a friend or tackle the hordes solo.
• Lead from the front lines with your powerful, upgradable command ship.
• Complex hybrid strategy; box enemies in with walls, then crush them with mobile units.
• Two wildly different enemy forces: swarming alien Xenos and the more human Riven.
• Fight for bragging rights on the global leaderboard, tallying up your total campaign score
• Spend your bounty from completed missions on permanent new tech upgrades.

Colony Siege is is in development for PC, PS4, Xbox One and Nintendo Switch, coming to Early Access on Steam this summer for $19.95, with a final release planned for later this year.