Games like CATAPULT BATTLE SIMULATOR!
Games like CATAPULT BATTLE SIMULATOR! include Touhou Big Big Battle, EmergeNYC, Once Human, Notes of Soul, and Drug Dealer Simulator. We matched them by the tags players give CATAPULT BATTLE SIMULATOR! on Steam (Action, Indie, Simulation, Strategy, and Casual): closest matches first, and among equally close ones the better-known games.

Touhou Big Big Battle
Shared: Indie · Strategy · Action

EmergeNYC
Shared: Simulation · Action · Early Access

Once Human
Shared: Action · Open World · Simulation

Notes of Soul
Shared: Action · Massively Multiplayer · Indie

Drug Dealer Simulator
Shared: Action · Simulation · Indie

Tower Unite
Shared: Casual · Massively Multiplayer · Indie

Last Oasis
Shared: Action · Massively Multiplayer · Indie

Wobbly Life
Shared: Simulation · Action · Indie

Mount & Blade II: Bannerlord
Shared: Strategy · Action · Open World

Feed and Grow: Fish
Shared: Simulation · Action · Indie

Where Winds Meet
Shared: Open World · Indie · Simulation

The Escapists
Shared: Strategy · Simulation · Indie

The Isle
Shared: Simulation · Open World · Massively Multiplayer

Retrowave
Shared: Indie · Action · Racing

House Flipper
Shared: Simulation · Casual · Action

Achievement Clicker
Shared: Indie · Casual · Simulation

Plague Inc: Evolved
Shared: Simulation · Strategy · Indie

BidKing
Shared: Strategy · Simulation · Casual

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

The Scroll of Taiwu : Beyond The Dome
Shared: Indie · Strategy · Simulation

ShellShock Live
Shared: Action · Strategy · Casual

Rust
Shared: Crafting · Open World · Action

Schedule I
Shared: Simulation · Action · Open World

Game Dev Tycoon
Shared: Indie · Simulation · Strategy