The cheap line has the biggest radius
AP 110 through AP 980 all sit at 350 radius. Laser defender drops to 280, Cromwell to 270, Anode Defense to 260. By area that is 45% less coverage than a turret costing fifty times less. Nothing else in the game is priced this counter-intuitively.
AP 150 is the value king
1.09 DPS per $1K, the best ratio in the category. Vulcan sits at 0.11 — roughly ten times worse per dollar. If you are filling empty slots on a budget, the AP line wins on every metric except one.
That one metric is survivability
Vulcan has 3,000 health against AP 150’s 700. Expensive turrets are bought to survive a barrage, not to shoot more. Mixed layouts work: AP units for coverage, one or two high-health pieces where fire concentrates.
Mini-Shield is not a turret
0 DPS, 5,000 health, and the shop states it cannot be destroyed. It is a 320 Robux damage sponge, not a weapon — do not count it toward your defensive output.