Grid Guardians: Tower Defense

Merge turrets, plan every move and stop the robot invasion. Grid Guardians is a turn-based tower defense and strategy game with no timers: take as long as you like, then press END TURN and watch your turrets open fire. NEW IN 1.6.1 - 20 new levels: chapters 4 and 5, The Foundry and Zero Hour - Every turret rebuilt, all the way up to the 4096 beam - Three new robots: Splitters, Jammers and Burrowers - Tap any robot to see what it does and how to beat it 50 LEVELS, 5 ROBOT BOSSES - Five chapters: Boot Camp, Iron Wall, Overdrive, The Foundry and Zero Hour - A boss ends every chapter, up to the Hydra, which splits in two, and the Overlord - Earn up to 3 stars on every level and open star chests as you go - Later chapters add overcharge pads and anvils, and goals to forge a big turret or win against the clock - Get 3 stars on a whole chapter to open Hard mode MERGE YOUR WAY UP Tap a turret and the board shows where it can go: amber to place, green to merge, blue to swap. Merge two of the same to climb from gatlings to rockets, flamethrowers, twin cannons and beams, all the way to 4096. 10 KINDS OF ROBOTS Runners cross two cells a turn, Shields stop your volley, Medics repair their friends, Drifters switch lanes, Splitters break in two, Jammers weaken your fire and Burrowers dig in. THE DAILY CHALLENGE A new level every day, the same for every player. Win a booster for every star, and every 7th day of a streak pays double. BOOSTERS FOR TIGHT SPOTS Call down a Firestorm, Freeze the robots in their tracks or give every turret a Double Attack. ENDLESS MODE Every turn you survive is a point. Open a chest at turns 100, 200 and 300 and beat your best in an offline tower defense run that never ends. ALSO - Play offline, no Wi-Fi needed - Daily rewards and goals that pay out boosters - Sign in with Google Play to keep your progress on a new phone (optional) How long can you hold the line?