Tower defense incremental games
43 hand-tagged games, ranked by live Steam and Galaxy ratings.

Desktop Defender
A lone tower in the corner of your screen holds off waves while you work, dropping gear to equip and resetting runs for permanent ascension upgrades.
92% steam90% idle
The Perfect Tower II
Tower defence as an idle engine, plus factories, mining and an in-game scripting language.
87% steam60% idle
Abyss Manager Idle
Assign characters to jobs, gather resources and dig deeper floors in an idle tower defense. About two hours to finish completely.
95% steamhas ending
Zero Stress King: Idle DefenseUpdated
A tower defense where you cannot lose: enemies charge your walls and fall into lava, and you spend the payout on defenders and a map-shaped skill tree.
87% steam3.6★ galaxy
Sir, We Have an Orc Problem
A short tower defense against orc armies in the tens of thousands, where every run, won or lost, feeds a big tree of turret upgrades.
86% steam
All Aboard! The Train Defense Express
Defend a power generator from waves of orcs with a looping train, buying combat and gold-making carriages and merging three alike to level them.
91% steam
OutholdUpdated
A short tower defense run-based game where you spend collected resources in a large refundable skill tree between attempts.
4.4★ galaxy
Idle Hero TD - Tower Defense RPGUpdated
An endless tower defense where you recruit and place fantasy heroes against infinite waves, and they keep fighting and collecting rewards while the game is closed.
82% steam75% idle
World of Towers VS. Cubes
Build towers and walls against waves of cubes across five worlds, mining crystals and spending loot in talent and soul trees and a workshop.
4.4★ galaxy
Grow Defense
Level a castle's weapons and skills to hold back monsters across zones, chase rare drops from raid bosses and rebirth for permanent perks.
77% steam
Idle Monster TD: Evolved
A reverse tower defense where you evolve over 150 monsters to hold a portal against endless human invaders, placing them to combine abilities.
76% steam75% idle
castle idlerUpdated
A tower defense incremental without waves, where you place and upgrade towers against slimes and unlock a prestige skill tree across harder levels.
79% steam3.6★ galaxy
RefenceDormant
Defend a wall with chosen heroes in a roguelike idle defense, building up your castle, researching features and crafting relics.
77% steam3.4★ galaxy
Idle Monster TD
Place elemental monsters on the map to hold off endless robot waves, combining their abilities and upgrading stats between fights.
72% steam70% idle
Tiny TowersUpdated
Defend a small fortress against waves of tiny monsters in an action-focused incremental.
4.1★ galaxy25% idle
Mindscape
A breathing-themed tower defense: guard a Breath Center from incoming Thoughts by guiding them through Awareness into Clarity.
3.6★ galaxy
Crystal ClickerUpdated
Defend a central crystal from waves of enemies by clicking to repair and attack, buying upgrades between runs.
25% idle
Grid Forge TDUpdated
Tower defense where you lay tetromino pieces to shape the enemy path and mount towers on them.
3.5★ galaxy
Samawa Idle
Pick and level towers against monster hordes, shaping runs with random gear, passives and a skill tree across two prestige layers.
68% steam50% idle
Summoners Greed: AFK TD TowerUpdated
Summon heroes, place them on a grid to hold off waves, and collect rewards that build up while the game is closed.
75% idle
The Tower - Idle Tower DefenseUpdated
Defend a single tower against waves, buy permanent upgrades and research while idle or active.
50% idle
Zombie Idle DefenseUpdated
Equip survivors with weapons and hold a defensive line against waves of zombies and bosses across post-apocalyptic levels.

Dice vs Monsters: Roguelike TDUpdated
A roguelike tower defense where each hero is a die, with dice rolls used to upgrade abilities against monster waves.

Galaxy Defense: Fortress TDUpdated
Build and combine turrets to protect Earth from aliens, picking roguelike upgrades mid-battle and powering up your character with chips.

Boom Castle: Tower Defense TDUpdated
Hold a castle against orcs, skeletons, and demons with towers and heroes in a roguelike defense that grows stronger each run.

Slime Castle: Idle TD RTS GameUpdated
Play as a slime defending a forest castle from human invaders, gathering gear and skills and returning stronger after each defeat.

Idle Archer Tower Defense RPGUpdated
Defend a tower as a lone archer against monster waves, collecting skill cards and spending gold on permanent upgrades after each loss.

Idle Kingdom DefenseDormant
Command heroes and archer corps in large castle-defense battles, with rewards stacking up while the game is closed.
75% idle
Medieval: Defense & ConquestDormant
Build a crusader settlement's farms and trade, then spend the income on an army and walls to hold off waves of attackers.

Rogue with the Dead: Idle RPGUpdated
March an army 300 miles to slay the Demon Lord; troops fight automatically, and each death resets your run but makes you stronger.
has ending75% idle
Mega Tower - Casual TD GameUpdated
Merge and modify towers in a sci-fi tower defense that fights on its own but lets you aim manually.
50% idle
Dead Spreading:Idle GameDormant
Recruit soldiers and upgrade a base to hold off zombie waves while balancing defense and supply gathering.

Eternal Cannon Idle ShootingDormant
Defend a city with an upgradable cannon and walls, mixing tapping and upgrades where each level brings a new skill.
50% idle
Geometry Tower: Idle DefenseUpdated
Defend a single tower against endless waves, picking roguelike upgrades each run and researching permanent boosts.

Kitty Keep™Updated
Cat heroes defend a beach castle from sea creatures in an idle tower defense that runs on auto-battle.

Tiny Warriors Rush - Idle TDUpdated
Pick warriors and random upgrade cards in tower-versus-tower battles, then spend winnings to level your army.

Combo Clash - Era WarsUpdated
Merge weapon blocks on a grid to power a hero against waves of enemies, advancing through eras from cavemen to future soldiers.

Idle Defense: Dark ForestDormant
Play a banished trainee wizard who deploys turrets to hold off monsters released from a shattered seal.

Tower Defense: Lazy ApocalypseUpdated
Play a monster-slaying streamer holding off zombie waves, upgrading weapons while your hero keeps fighting when you are away.
75% idle
Harvest King: Farm Defense TDUpdated
Merge vegetable defenders on rotating farm slots and manage water to fend off enemy waves, with resources building up while you are away.
50% idle
Merge Kingdoms - Tower DefenseUpdated
Merge and place towers against thousands of waves, unlocking prestige mode at wave 600 and a final boss at wave 1000.
has ending
A Dungeon Is You - DemoUpdated
Reincarnated as a dungeon core, you lay out a maze of walls and floors, upgrade defenders and fit loot idols into a grid inventory.
2.8★ galaxy
Tower Ball - Incremental Tower DefenseDormant
Place turrets that shoot down falling balls for cash, upgrade seven tower types, and prestige to restart stronger on harder levels.
61% steam75% idle