Towers
Details on the 4 towers you can build.
Photon Cannon
Damage: 10
Cost: 30
Build Time: 1
There is a 200 cannon limit to prevent lag; besides. If you're building more than 200 cannons you're not playing correctly.
Missile Turret
Damage: 150
Cost: 500
Build Time: 5
The missile turret is a great anti-air tower, and should be built early. But don't get too attached, Spore Crawlers are the way to go.
Spine Crawler
Damage: 500
Cost: 2000
Build Time: 15
This is the ultimate in anti-ground defense. While you can move it, place them carefully as they move extremely slowly.
Spore Crawler
Damage: 350
Cost: 2000
Build Time: 15
When trying to defend against a Phoenix, 1 Spore tower is the equivalent of 200 Missile Turrets. 'Nuff said.