Fort Survival

Your keep. Your last stand. Pick a duke, race five rival rulers to an open castle, and take the throne. Build a defense that can survive the next siege—before zombies and wolves break through your gate. CLAIM A KEEP WORTH DEFENDING Explore an open field and choose your castle. Different entrances, courtyard layouts, and building spaces change how you prepare for each attack. BUILD WHERE IT MATTERS Tap a courtyard tile to place an archer post, crossbow guard, ballista, or support building. Grow your gold income, generate runes, reinforce your gate, and improve your defenses as the pressure rises. OUTLAST THE HORDE Zombies and wolves strike different keeps, recover, and return stronger. Invest while they are away. React when they turn toward your gate. A good build needs both an economy and a defense. 10,000 CAMPAIGN LEVELS New layouts and stronger enemies keep each siege demanding. Elite sieges arrive every five levels. Clear a level, earn Royal Gems, and prepare for the next kingdom. ENDLESS SIEGE Keep your castle and buildings between waves. Reinforce what survived, change your strategy, and push your personal record as far as you can. SIX DUKES, DIFFERENT STRENGTHS Start with Rowan Ironwood. Earn Royal Gems to unlock five more rulers and permanent blueprint upgrades that strengthen your next run. Higher starting tiers still need the economy to afford their next upgrade. Made for touch controls, with animated pixel art, clear building choices, and castles worth defending. The rival dukes are local AI. Battles run locally; network access is needed for connected services. Permanent progress is saved between runs. KEEP YOUR KINGDOM Start playing as a guest. Optionally protect your progress with an email account inside the game, recover a saved kingdom on another phone, and manage your account in Settings. An internet connection is required for cloud recovery. CHASE YOUR NEXT RECORD Compare real global and country rankings, open game-stat profiles, and follow rival rulers. Improve your build and beat your own siege record. OPTIONAL EXTRAS Play without mandatory ads. Choose rewarded videos for extra gems and siege benefits, or get Royal Pass for the corresponding benefits without watching videos. Optional gem packs are available through the App Store.