Games like City Breaker
Games like City Breaker include Totally Accurate Battle Simulator, Feed and Grow: Fish, Mount & Blade II: Bannerlord, Hard Bullet, and EmergeNYC. We matched them by the tags players give City Breaker on Steam (Strategy, Action, Indie, Simulation, and Adventure): closest matches first, and among equally close ones the better-known games.

Totally Accurate Battle Simulator
Shared: Simulation · Strategy · Indie

Feed and Grow: Fish
Shared: Simulation · Action · Early Access

Mount & Blade II: Bannerlord
Shared: Strategy · Action · Simulation

Hard Bullet
Shared: Action · VR · Simulation

EmergeNYC
Shared: Simulation · Action · Early Access

The Escapists
Shared: Strategy · Simulation · Indie

Ultimate Epic Battle Simulator
Shared: Strategy · Simulation · Action

Total Tank Simulator
Shared: Strategy · Action · Simulation

Drug Dealer Simulator
Shared: Action · Simulation · Indie

Space Pirates And Zombies 2
Shared: Strategy · Action · Indie

Plebby Quest: The Crusades
Shared: Strategy · Indie · Simulation

Shieldwall
Shared: Action · Strategy · Simulation

We Who Are About To Die
Shared: Action · Strategy · Simulation

OMON Simulator
Shared: Action · Simulation · Indie

Achievement Clicker
Shared: Indie · Strategy · Simulation

Between the Stars
Shared: Action · Strategy · Simulation

Ultimate Epic Battle Simulator 2
Shared: Strategy · Simulation · Action

Plague Inc: Evolved
Shared: Strategy · Simulation · Indie

Wobbly Life
Shared: Adventure · Simulation · Action

Border Officer
Shared: Action · Simulation · Indie

Notes of Soul
Shared: Action · Adventure · Indie

War Thunder
Shared: Action · Simulation · VR

BONEWORKS
Shared: Action · VR · Adventure

Door Kickers
Shared: Strategy · Action · Simulation