Lonekeep: Idle Castle Defense

Lonekeep is an idle castle defense game. One fortified keep stands in the middle and the siege closes in from every side. Your weapons fire on their own; your job is to decide where the gold goes.

Build the wall your way
Twelve defenses, from ballista and cannon to tesla coil, frost, tide and prism, each with its own upgrade path. Mount them on four slots, level them up and mix elements against what each world throws at you.

One button that matters
Every run you pick a single ultimate: drop a meteor on the thickest pack, freeze the whole field, ring the walls with fire, mend the keep or call out the garrison. One press, then a long recharge.

Six worlds, then the frontier
Each named world has its own weaknesses and resistances. Beyond the sixth, endless frontier worlds keep going, growing up to twenty waves.

Come back richer
Crowns keep flowing while you are away. Spend them in the Great Hall on permanent upgrades: thicker walls, sharper bolts, deeper coffers.

• Runs of a few minutes, progress that stays
• Offline earnings, daily gifts and quests to complete
• Your progress is included in your Android backup
• Optional: remove ads for good

If you like idle tower defense and incremental games, this is a medieval siege survival game you can play offline: defend your fortress wave after wave, upgrade between runs and come back to a fuller treasury.

The game is in English.