Claiming Cosmos Play this free space strategy game

Planetary Battery

Planetary Battery in Claiming Cosmos: $1.5M land cannon, 15s reload, auto or manual aim, 80/20 landing ring.

Planetary Battery art for Claiming Cosmos: hilltop cannons overlooking a valley
Planetary Battery — labeled art for Claiming Cosmos.

Folklore

Not every fight is at the shore. Some captains haul guns inland so the valley itself becomes a barrel.

In the game

Place on owned land. $1,500,000 to place or upgrade, levels 1–10 (shells per volley). 15 second reload. Auto-fire on by default; manual lets you pick the impact circle. Shells scatter in a landing ring: about 80% toward a target, 20% toward troops. Hits over water, but a water landing is a dud. Land hits scorch a small patch of enemy ground — not yours. Range 100–210 tiles.

Back to the building list or pick a map like Sol System and play Claiming Cosmos in the browser.