Build and upgrade your fortress to defend against waves of monsters and boss attacks. Collect idle rewards and improve your defenses for longer runs. Designed for quick, one-handed play sessions.





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Whether you want more options like Only One Tower or a completely different take on the same concept, our curated list of 10+ similar apps and games has you covered. Updated for 2026 with the latest ratings and comparisons.





Build and upgrade your fortress to defend against waves of monsters and boss attacks. Collect idle rewards and improve your defenses for longer runs. Designed for quick, one-handed play sessions.






Engage in a monster-slaying adventure with strategic tower defense and roguelike elements. Enjoy offline progress and deep customization through a skill tree and prestige systems. Automate gameplay for a truly idle experience.






Build and manage a global railway network in this idle tycoon game. Expand stations, upgrade trains, and earn profits even while offline. Optimize logistics and hire staff to become a top train manager.