Stack & Siege – Castle Duel

Two castles, a river in between. You build your wall from falling blocks — your opponent shoots it down again. ONE RULE DECIDES If your castle is not fully walled in when the build phase ends, you lose. Diagonals count. A single gap is enough, and your opponent knows exactly where it is. THE RHYTHM Build, shoot, arm up — and again. Everyone plays at the same time, nobody waits for a turn. Every phase lasts seconds, every decision carries into the endgame. TWO KINDS OF CANNON The Wall Breaker tears holes into the defence. The Slayer only hits cannons and takes out your opponent's firepower — so expensive that you cannot afford it before round two. SEVEN WORLDS, TWELVE FACES Every match takes place in a different painted landscape, from frozen plains to a volcano's maw. Twelve painted avatars unlock as your level rises. ONLINE OR ON YOUR OWN Play online against random opponents, with friends via a code, two or three players on one device — or offline against the bot on three levels. COLLECT AND FORGE Spoils become upgrades, gold becomes cosmetics: cannons, impacts, ball trails, victory effects. Rare materials from online matches can be forged into pieces you cannot get in the shop. HONESTLY Stack & Siege is free to play. No ads, no pay-to-win — the full game is open without paying. Gold and cosmetics are a reward for playing.