CASTRATürkçeMerge the legion.
Hold the wall.
CASTRA is a merge defense game set in ancient Rome. Recruit archers, spearmen and legionaries, merge two of a kind into stronger units, and hold the Vallum against waves of Gauls, Britons, Germanic berserkers and Hannibal's elephants.
Free with optional purchases. Ads can be removed with a one-time purchase.
12 Roman units
From Sagittarius archers to Onager catapults. Merge identical units to level them up; different units at Lv 2+ unlock new ones.
4 campaigns + Endless Siege
Gallia, Britannia, Germania and Carthage, each with its own enemies, omen and boss. Then see how long you last in the Endless Siege.
9 spells, 3 commanders
Pilum Rain, Neptune's Wave, Lupa's Wolf and more. Pick Scipio, Agrippa or Caesar to lead your legion.
Your castle grows
Upgrade the Vallum from a broken fence to an imperial fortress — eleven stages you can see.
Offline, no account
Play anywhere without an internet connection. No sign-in, your progress stays on your device.
English and Turkish
Chosen from your device language, changeable in Settings.
