
Pick your cards
Three cards lie in front of you. Pick one: recruit, upgrade or double a group. It lands on the field at once, your opponent answers, and three new cards appear. Recruit first and then double, and three units become twelve.
Three cards, pick one. Three picks a round, then watch your army storm the field on its own. A quick strategy game for phones, made for kids and grown-ups alike.
No download, no sign-up. Works on your phone and your computer.
Free to play · No ads · No chat · No purchases with real money

No timers, no frantic tapping. You think, you choose, and then you get to enjoy the show.

Three cards lie in front of you. Pick one: recruit, upgrade or double a group. It lands on the field at once, your opponent answers, and three new cards appear. Recruit first and then double, and three units become twelve.

Up to 150 units a side charge across the field. Archers pick off the back line, tanks hold the front, spies pop up where nobody expected them.

Win to earn packs, collect cards and level up your favourites. Every pack shows exactly what it can hold before you open it.
The castle has a champion, and she has a dog called Vitto. Watch how she arrives, then find her on your home screen, chasing him across the lawn and throwing sticks between battles.
Sixteen seconds. Sound on.
Easy to learn in one match. Enough depth to keep finding new squads months later.
Tanks, swarms, snipers, healers, mortars and assassins, in five rarities from common to champion.
The biggest battles put 150 against 150 on screen at once, and every single one fights on its own.
Play a unit often and it earns its own stars and stronger traits, separate from its level.
Meet recorded battle plans from real players, or a computer opponent matched to your squad. Always labelled.
Small goals built around the units you own, a win streak that pays a little extra, and a road of rewards.
Play in your own language, down to the player names.
Fortify Castle is open to children, so we built it never to need to know who they are. There is nothing to type that could reveal a child's identity, and no way for a stranger to reach them through the game.
The details are in our privacy policy, written to be read. You can delete an account and everything stored about it at any time, here or inside the game.
Real people read these. We answer within a few working days.