What does it add?
The Prism Tower, the Flak Cannon and, with Space Age, the Patriot Missile Launcher, all inspired by Command & Conquer: Red Alert 2. More defences are on the way.

Why is my prism tower so weak?
On its own it is. Place several close together (within their range, 26 tiles): idle towers link up in a chain and feed their energy into one shot, multiplying its damage up to ×5.

Do laser upgrades make it stronger?
No. It deals its own prism damage: enemies resist it like laser, but only the Prism damage research improves it (6 levels plus an infinite one).

It doesn't fire / the crown stopped spinning.
Check its power: without electricity it stops.

Does it take my player colour?
Yes, the base and the crown of prisms both do.

Do I need Space Age?
No. With Space Age, the Prism Tower becomes a late-game defence (tungsten, holmium, lithium, cryogenic science) and the Flak Cannon is researched on Vulcanus with tungsten parts. The Patriot needs Space Age (Aquilo). Without it, the Prism Tower and the Flak Cannon use base-game recipes.

Do I need New Enemies?
No, it works on its own against the vanilla biters. They're made to be played together, though.

Can I add it to an existing save?
Yes. Research the Prism tower as usual.

I found a bug / I have an idea.
Please post it in the Discussion tab. Thanks!