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Games like Operation: Outbreak Idle

by DeadLogics

Operation: Outbreak Idle is a top-down 3D post-apocalyptic incremental tower defense: building defenses, upgrading skills and fighting zombie hordes. Arms Evolution: ZOMBIE DESTROYER and Zombie Builder Defense play most like Operation: Outbreak Idle. Of the 12 closest games below, most share its tower defense, zombies and survival.

View on Steam · $4.99 →

Ranked by how similar the games actually are, not by sales. Released and Price are remembered for next time.

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Arms Evolution: ZOMBIE DESTROYER
Jul 24, 2023 · Ash Game Studio
Both: Tower Defense · Zombies
Top-down 3D post-apocalyptic roguelite tower defense, stylized 3D. Fighting zombie waves, evolving weapons and managing talents.
Tower DefenseRoguelikeLootCasualStrategyZombiesInventory Management3D PlatformerRoguelite3D👍 268
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Zombie Builder Defense
Nov 2, 2018 · Noham Games
Both: Zombies · Survival · Tower Defense
3D post-apocalyptic top-down shooter, stylized 3D. Shooting zombies, building base and upgrading skills.
ActionZombiesOnline Co-OpBase BuildingSurvivalTower DefenseTop-Down ShooterMultiplayerCo-opViolent👍 285
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Yet Another Zombie Defense
Mar 28, 2014 · Awesome Games Studio
Both: Zombies · Survival · Tower Defense
3D post-apocalyptic top-down zombie shooter, low poly arcade. Defending against zombie hordes, building defensive barricades and mounting auto turrets.
ZombiesSurvivalMultiplayerCo-opTower DefenseActionIndieShooterStrategyOnline Co-Op👍 7,674
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Last Hope - Tower Defense
Apr 13, 2016 · JE Software
Both: Tower Defense · Zombies
Top-down 3D post-apocalyptic tower defense strategy, stylized 3D. Building towers, controlling heroes and defending against zombies.
Tower DefenseZombiesStrategyIndieAdventureTop-DownFemale Protagonist👍 356
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Zombie Wars: Invasion
Jan 14, 2016 · DNZY Games
Both: Tower Defense · Zombies
Top-down 2D tower defense, fully cartoony graphics. Build towers, use abilities and command army.
StrategyCasualIndieTower DefenseZombies👍 129
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Over 9000 Zombies!
Feb 25, 2015 · Loren Lemcke
Both: Zombies · Tower Defense · Survival
Top-down 2D zombie apocalypse action roguelike twin stick shooter, pixel graphics. Shooting zombies, building barricades and deploying turrets.
Action RoguelikeZombiesMultiplayerTwin Stick ShooterCo-opTower DefenseTop-DownPixel GraphicsRoguelikeSurvival👍 1,208
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Zombie Defense
Sep 30, 2016 · Home Net Games
Both: Zombies · Tower Defense · Survival
Top-down 3D modern-day RTS tower defense, realistic 3D. Recruit soldiers, place soldiers and defend against zombies.
Free to PlayZombiesTower DefenseStrategyMultiplayerSurvivalActionCasualSingleplayerIndie
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Ultimate Zombie Defense
Dec 8, 2020 · Terror Dog Studio
Both: Zombies · Tower Defense · Survival
Top-down 3D post-apocalyptic co-op survival horror shooter, 3D stylized realism. Base building, shooting zombies and fighting bosses.
ActionCasualZombiesOnline Co-OpTower DefenseTop-Down ShooterCo-opGoreSurvivalMultiplayer👍 1,408
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VERSUS SQUAD
Oct 26, 2016 · DiezelPower
Both: Zombies · Survival · Tower Defense
3D post-apocalyptic top-down twin-stick shooter, gritty realistic 3D. Building defenses, shooting zombies and collecting loot.
ActionGoreIndieZombiesSurvivalTower DefenseCo-opTop-Down ShooterTwin Stick ShooterTop-Down👍 527
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2112TD: Tower Defense Survival
Jan 19, 2023 · Refinery Games
Both: Tower Defense · Survival
Isometric 3D sci-fi tower defense survival, 90s RTS nostalgia. Deploying towers, managing abilities and upgrading weapons.
Tower DefenseStrategySingleplayerSci-fiSurvivalActionTacticalTop-DownIsometric2D👍 432
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Endless Horde
Apr 10, 2017 · Ominous Entertainment
Both: Tower Defense · Zombies · Survival
Top-down 2D sci-fi tower defense, pixel art. Positioning units, placing traps and surviving waves.
Tower DefenseZombiesSurvivalActionTacticalSingleplayerIndieGoreStrategyReal Time Tactics👍 171
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Infectonator: Survivors
Aug 8, 2016 · Toge Productions
Both: Zombies · Survival · Tower Defense
Top-down 2D post-apocalyptic roguelike survival simulation, pixel art graphics. Scavenge resources, build defenses and survive.
ZombiesStrategySurvivalIndiePixel GraphicsSimulationTower DefenseRPGActionAdventure👍 1,000
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