The horn sounds. An invading army marches on your castle, four lanes wide, and only your wall stands in its way.
War Horn is a solo strategy card game of siege defense. Each turn new invaders are revealed at the far end of the field and advance toward your wall. Place Armies to stop them, raise Quarries to rebuild the stones they break, and call on Allies at just the right moment. Survive every wave with your wall restored, and the castle is saved.
TRY IT FREE, UNLOCK ONCE
- Free: the guided practice battle and the complete Intro Game, as many times as you like, plus one Advanced battle to try
- Full game, one purchase: unlimited Advanced battles, every difficulty setting, the War Banner and both expansions
- No ads, no subscriptions, nothing else to buy
EASY TO LEARN, HARD TO MASTER
- A short guided battle teaches the basics as you play
- Every card's rules are a long press away
- Optional one-time tips explain new cards and events the first time you meet them
- Battle Orders set out your goal at the start of every new kind of battle
COMMAND YOUR DEFENSE
- Armies: Militia, Spearmen, Men at Arms and the Garrison meet the enemy head on
- Quarries: keep them standing; their stone repairs the wall when the battle ends
- Allies: a Mage to strike down an invader, a Sentry to cancel a threat, a Scout to move the enemy, a Quartermaster to bring more cards, and more
- Most plays can be undone within your turn, so you can think it through
FACE A RELENTLESS ENEMY
- Skirmishers, Knights, Warbands and Battering Rams that become Berserkers, Champions, Legions and Great Rams when the War Horn sounds
- War Drums that drive the whole army forward at once
- Saboteurs and Attrition that strike at your hand and your reserves
THE ADVANCED GAME (FULL GAME)
- Recruit your own army in the Call to Arms draft before battle
- Set your challenge: starting wall, reinforcements per turn, and how much of the wall must stand at the end
- War Banner: an invader carries the banner, and if it reaches your wall the castle falls
- Two expansions included:
– Heroes & Traitors: powerful Feats to turn a battle, and Turncoats hiding in your own ranks
– Siegecraft: Catapult Barrages, Rout, Siege Tunnels and Powder Kegs
AND MORE
- Every battle is recorded: win rate, streaks, hardest victory, personal bests and every invader you've defeated
- Optional cloud sync keeps your stats the same across your devices
- Medieval soundtrack and battle sound effects, each with its own volume slider
- Plays fully offline, in portrait on phones and side by side on tablets
Raise the wall. Sound the horn. Hold the line.
Latest Version
Varies with deviceRequires Android
Category
Free Card GameContent Rating
Everyone 10+ · Fantasy Violence
Report
Flag as inappropriateLast updated on Oct 23, 2026
This release includes minor bug fixes and general improvements. Update to the latest version for the best experience.
