Cat Castle Defense: Tower TD
Apps Fun Lab LLC Strategy Contains ads
Hero cat vs the Rat King! Stack coins, build towers & defend your cat castle!
- Price
- Free
- No in-app purchases
- Updated
- Oct 16
- 2026 · v1.0.0
Screenshots
About Cat Castle Defense: Tower TD
The Rat King wants the Golden Yarn. Only one brave cat stands in his way!
Cat Castle Defense mixes cute cat games with real tower defense, and YOU are the hero. Run around the map with one thumb while your cat blasts the rat horde on its own. Every rat you beat drops coins. Stack them on your cat's back, carry them to a build zone and watch a brand-new tower pop up and start shooting. What you see is what you play: no kingdoms to manage, no waiting timers, just pure castle defense.
DEFEND THE CASTLE
• Rats march out of the sewer gates and down winding roads toward your castle.
• Run, shoot and stop them before they reach the walls.
• Watch the castle HP bar: if the rats break through, the Golden Yarn is gone!
BUILD ANY TOWER
• Drop your coins into a zone. When it fills up, pick 1 of 3 tower cards.
• 8 towers to unlock: Blaster, Frost Totem, Tesla Coil, Cat Archer Tower, Cat Drone, Yarn Mortar, Coin Mine and Cat Knights Barracks.
• Upgrade your towers the same way: more coins, more power.
• Mix and match: slow the horde with frost, then zap the whole line with tesla.
• Classic tower defense strategy with a twist: you carry the coins yourself.
LEVEL UP YOUR HERO
• Every rat you beat gives XP. Level up in the middle of the fight and choose a new ability card.
• Multishot, Power Shot, Pierce, Claw Swipe, Yarn Orbit, Coin Magnet, Zoomies and more.
• Roguelike card picks mean a different cat hero every run.
• Spend your coins on talents between levels for permanent boosts: more damage, faster fire, a tougher castle and a bigger coin backpack.
BOSSES & NEW ENEMIES
• Face the Rat King himself, plus big brute mini bosses. Some bosses can only be hurt by towers, so build smart!
• Shield Rats block your shots from the front.
• Bomber Rats run at your towers and blow up, knocking them out for a few seconds.
• Digger Rats tunnel under your defences and pop up near the castle.
• Rat Shamans heal the horde around them. Take them out first!
MULTIPLE WORLDS
• Sunny Meadow, Maple Woods, Dusty Canyon and Frosty Peak.
• 20 levels with new roads, bridges, sewer gates and bigger rat armies.
• A comic story intro: help the Cat Kingdom save the Golden Yarn from the sneaky Rat King.
MADE FOR ONE HAND
• One thumb to move. Your cat shoots on its own.
• Short levels that are perfect for a quick break.
• Easy to learn, with real tower defense strategy for anyone who loves cat games, castle defense and tower defense battles.
Grab your blaster, stack those coins and defend the castle. The rats are coming!
Cat Castle Defense mixes cute cat games with real tower defense, and YOU are the hero. Run around the map with one thumb while your cat blasts the rat horde on its own. Every rat you beat drops coins. Stack them on your cat's back, carry them to a build zone and watch a brand-new tower pop up and start shooting. What you see is what you play: no kingdoms to manage, no waiting timers, just pure castle defense.
DEFEND THE CASTLE
• Rats march out of the sewer gates and down winding roads toward your castle.
• Run, shoot and stop them before they reach the walls.
• Watch the castle HP bar: if the rats break through, the Golden Yarn is gone!
BUILD ANY TOWER
• Drop your coins into a zone. When it fills up, pick 1 of 3 tower cards.
• 8 towers to unlock: Blaster, Frost Totem, Tesla Coil, Cat Archer Tower, Cat Drone, Yarn Mortar, Coin Mine and Cat Knights Barracks.
• Upgrade your towers the same way: more coins, more power.
• Mix and match: slow the horde with frost, then zap the whole line with tesla.
• Classic tower defense strategy with a twist: you carry the coins yourself.
LEVEL UP YOUR HERO
• Every rat you beat gives XP. Level up in the middle of the fight and choose a new ability card.
• Multishot, Power Shot, Pierce, Claw Swipe, Yarn Orbit, Coin Magnet, Zoomies and more.
• Roguelike card picks mean a different cat hero every run.
• Spend your coins on talents between levels for permanent boosts: more damage, faster fire, a tougher castle and a bigger coin backpack.
BOSSES & NEW ENEMIES
• Face the Rat King himself, plus big brute mini bosses. Some bosses can only be hurt by towers, so build smart!
• Shield Rats block your shots from the front.
• Bomber Rats run at your towers and blow up, knocking them out for a few seconds.
• Digger Rats tunnel under your defences and pop up near the castle.
• Rat Shamans heal the horde around them. Take them out first!
MULTIPLE WORLDS
• Sunny Meadow, Maple Woods, Dusty Canyon and Frosty Peak.
• 20 levels with new roads, bridges, sewer gates and bigger rat armies.
• A comic story intro: help the Cat Kingdom save the Golden Yarn from the sneaky Rat King.
MADE FOR ONE HAND
• One thumb to move. Your cat shoots on its own.
• Short levels that are perfect for a quick break.
• Easy to learn, with real tower defense strategy for anyone who loves cat games, castle defense and tower defense battles.
Grab your blaster, stack those coins and defend the castle. The rats are coming!
User reviews
Léon: The Professional