Ironhold - Idle Tower Defense

One castle. Endless waves. Every rebuild starts stronger than the last.

Ironhold is a free idle tower defense game set in the world of Thornveil, where you command a single keep across an unending siege. Place your defenders. Route your gold. Watch the walls hold — or don't. When the keep falls, the coffers fill, and the next siege begins stronger than the one before.

This is a game of small decisions that compound. Every coin picks a lane. Every upgrade sharpens the loop. Every run teaches you where the walls will break next.

WHAT YOU'LL DO

— Defend across endless waves. Wave 40 is not the end. Wave 400 is not the end.
— Recruit heroes from eleven great Houses. A growing roster of named defenders, each with their own strengths and their own price if they fall.
— Route your gold across attack, defense, and support. Every siege is a new economy.
— Rescue what the walls take. When a defender is captured, you can send others to bring them home.
— Send heroes on quests and dungeon dives that keep running while you're away. The siege waits for you; your heroes don't.

WHAT MAKES IT DIFFERENT

— The roster stays with you. Named defenders level up, remember their wounds, and carry your history across every run.
— Prestige rebuilds turn every fallen keep into permanent power: Forge research and the Crucible tech tree carry across every siege.
— The Veilwatch turns each week. New invasion scenarios, new leaderboards, new pressure.
— A seasonal battle pass with a free track, earned by playing.
— Artifacts to unlock, each one bending the siege in a different direction.
— Your call, your pace. Every upgrade shows its effect before you pay for it.

Ironhold is built for players who want the depth of a strategy game and the pace of an idle one. The walls will fall. That's part of the loop. The chronicle is what you build across every rise and ruin.

Hold the line. Rebuild higher.

Also playable in your browser at ironholdgame.com.

Contains optional rewarded ads and in-app purchases. Both are entirely skippable.

— Get It Got It Games

Recent changes:
• All-Even mode added to Veilwatch events to put everyone on an even playing field for this upcoming event
• Compacted Home screen info design
• Improved Home screen artwork loading and transitions when returning from other screens
• Improved startup reliability and fixed various display issues.