Games like Operation: Outbreak Idle

Want something that feels colorful and tense the way Operation: Outbreak Idle does? Browse these games for your next favorite.

Cheaper than Operation: Outbreak Idle

Is Zombody Home?

Is Zombody Home?

Upgrade the house, customize the weapon and charge the special attacks, your cute zombie horde is about to attack.

100% of 3 Steam reviews are positivePlayers online now: 1$3.99
BastionOS

BastionOS

A short active incremental game where you stack ludicrous weapons and upgrades onto a tower.

96% of 178 Steam reviews are positive$3.30
Beach Defense: Zombie Invasion

Beach Defense: Zombie Invasion

Command soldiers, survive zombie waves! A light strategy game mixing turn-based & real-time strategy, bullet hell, and backpack-like mechanics.

80% of 204 Steam reviews are positivePlayers online now: 2$3.99
Zombo Buster Rising

Zombo Buster Rising

Shoot zombies from terrace like a boss! Zombo Buster Rising Remastered brings you a nostalgic experience of classic 2D side shooting-defense in…

92% of 442 Steam reviews are positive$1.99
Zombie Rush : Extinction

Zombie Rush : Extinction

The top of strategy battle game! Build villages and train units to defeat zombies

71% of 24 Steam reviews are positive$1.99
Yet Another Zombie Defense HD

Yet Another Zombie Defense HD

Fortify your spot with turrets and barricades, then shoot your way through the night, alone or with three friends.

83% of 2,563 Steam reviews are positivePlayers online now: 23$3.99
Outpost

Outpost

this is a tower defence game,we need upgrade our weapons to fight waves of enemies,robots can mining diamonds,and we need spent those in many…

74% of 185 Steam reviews are positive$3.99
STAND: Survive, Team-up, And Never Die

STAND: Survive, Team-up, And Never Die

Team up with survivors, customize your character, and combine over 70 weapons and items to defend your central tower against endless waves of enemies.

68% of 31 Steam reviews are positive$1.99
Endless Horde

Endless Horde

The horde is here to eat your brain and murder every single one of your scientists.

64% of 171 Steam reviews are positive$0.99
Zombie Clicker Defense

Zombie Clicker Defense

Hire new soldiers and send them into battle with an inordinately growing army of various walking creatures.

44% of 27 Steam reviews are positive$1.99
outpost4

outpost4

Drive a cartoon outpost across hostile planets, defend it with drones and guns, and rebuild it stronger after every run.

75% of 127 Steam reviews are positivePlayers online now: 18$3.99

Hidden gems like Operation: Outbreak Idle

BastionOS

BastionOS

A short active incremental game where you stack ludicrous weapons and upgrades onto a tower.

96% of 178 Steam reviews are positive$3.30
Beach Defense: Zombie Invasion

Beach Defense: Zombie Invasion

Command soldiers, survive zombie waves! A light strategy game mixing turn-based & real-time strategy, bullet hell, and backpack-like mechanics.

80% of 204 Steam reviews are positivePlayers online now: 2$3.99
Legend of Defenders

Legend of Defenders

Set up heroes and turrets, let the waves crash in, and come back to a richer, stronger fortress.

79% of 672 Steam reviews are positivePlayers online now: 6,392$9.80
Ultimate Zombie Defense 2

Ultimate Zombie Defense 2

Team up with up to three friends, fortify your base between waves and blast through the undead with customized guns.

76% of 617 Steam reviews are positivePlayers online now: 29$9.99
outpost4

outpost4

Drive a cartoon outpost across hostile planets, defend it with drones and guns, and rebuild it stronger after every run.

75% of 127 Steam reviews are positivePlayers online now: 18$3.99
Zombie Builder Defense 2

Zombie Builder Defense 2

Defend against hordes of zombies in this fun filled top-down shooter.

83% of 210 Steam reviews are positive$9.99
ShredDead

ShredDead

Feed the endless horde into your shredder, gear up a crew of grunts, and watch a huge skill tree fill in at your own pace.

72% of 509 Steam reviews are positivePlayers online now: 210$5.99
City Defense Z

City Defense Z

Build up your base in daylight, then hold it against the zombie horde after dark, with every failed run making the next one stronger.

72% of 320 Steam reviews are positivePlayers online now: 3$9.99
Northend Tower Defense

Northend Tower Defense

Build a defense from soldiers, vehicles and traps, then survive the waves in real time.

74% of 1,304 Steam reviews are positivePlayers online now: 1$7.99
Doom Sweeper

Doom Sweeper

DOOM SWEEPER is a 2D pixel-style game. Clean up the approaching zombie climax, and exchange it for cash, embarking on a journey to become an arms…

72% of 783 Steam reviews are positive$4.99
FatalZone: Outbreak

FatalZone: Outbreak

Outbreak is the demo version of FatalZone, a bullet heaven zombie apocalypse shooter where you'll have to upgrade your base, hone your mercs'…

74% of 309 Steam reviews are positivePlayers online now: 1Free
Ultimate Zombie Defense

Ultimate Zombie Defense

Fortify a sealed-off suburb, then fight off endless zombie waves alongside up to three friends.

86% of 1,416 Steam reviews are positivePlayers online now: 17$4.99

Newest games like Operation: Outbreak Idle

Zombies Aren't Real

Zombies Aren't Real

Deploy military forces across real-world cities and stop a fast-spreading infection before it swallows the population.

96% of 463 Steam reviews are positivePlayers online now: 3,399$8.99
Legend of Defenders

Legend of Defenders

Set up heroes and turrets, let the waves crash in, and come back to a richer, stronger fortress.

79% of 672 Steam reviews are positivePlayers online now: 6,392$9.80
ShredDead

ShredDead

Feed the endless horde into your shredder, gear up a crew of grunts, and watch a huge skill tree fill in at your own pace.

72% of 509 Steam reviews are positivePlayers online now: 210$5.99
Wartide

Wartide

Hold off waves from every side with infantry, tanks and gunships, and grow eight vehicle lines from WWII halftracks to modern armor while the battle…

82% of 38 Steam reviews are positivePlayers online now: 11$4.99
Keep Her Safe

Keep Her Safe

Scavenge guns, bolt them onto your base and hold off zombie hordes until the rocket flies.

88% of 611 Steam reviews are positivePlayers online now: 23$9.99
My Zombies Are Hungry

My Zombies Are Hungry

Grow a tiny zombie horde into a city-devouring swarm in this incremental auto-battler.

100% of 2 Steam reviews are positive$5.99
outpost4

outpost4

Drive a cartoon outpost across hostile planets, defend it with drones and guns, and rebuild it stronger after every run.

75% of 127 Steam reviews are positivePlayers online now: 18$3.99
Pixel Orbit

Pixel Orbit

Incremental game about defending Earth from impending danger.

78% of 36 Steam reviews are positive$3.99
Beach Defense: Zombie Invasion

Beach Defense: Zombie Invasion

Command soldiers, survive zombie waves! A light strategy game mixing turn-based & real-time strategy, bullet hell, and backpack-like mechanics.

80% of 204 Steam reviews are positivePlayers online now: 2$3.99
Grimwatch: Mutation Protocol

Grimwatch: Mutation Protocol

🧟 Humanity is on the brink. In Grimwatch: Mutation Protocol, you defend the last routes of survival against massive zombie hordes.

100% of 11 Steam reviews are positive$19
BastionOS

BastionOS

A short active incremental game where you stack ludicrous weapons and upgrades onto a tower.

96% of 178 Steam reviews are positive$3.30
castle idler

castle idler

castle idler is a short, relaxing incremental tower defense game with no waves. upgrade towers, collect coins, and unlock powerful prestige upgrades…

79% of 187 Steam reviews are positivePlayers online now: 4$3.99