Games like The Gun Goes; BOOM!
Games like The Gun Goes; BOOM! include Getting Over It with Bennett Foddy, A Difficult Game About Climbing, Celeste, Pogostuck: Rage With Your Friends, and Jump King. We matched them by the tags players give The Gun Goes; BOOM! on Steam (Precision Platformer, Side Scroller, Difficult, Psychological Horror, and Physics): closest matches first, and among equally close ones the better-known games.

Getting Over It with Bennett Foddy
Shared: Difficult · Psychological Horror · Physics

A Difficult Game About Climbing
Shared: Difficult · Psychological Horror · Precision Platformer

Celeste
Shared: Precision Platformer · Difficult · 2D Platformer

Pogostuck: Rage With Your Friends
Shared: Precision Platformer · Difficult · Psychological Horror

Jump King
Shared: Precision Platformer · Difficult · Psychological Horror

Geometry Dash
Shared: Difficult · Precision Platformer · Platformer

Super Meat Boy
Shared: Precision Platformer · Difficult · Platformer

I wanna be the Creator
Shared: Precision Platformer · Action · Difficult

VVVVVV
Shared: Precision Platformer · Difficult · Platformer

Thomas Was Alone
Shared: Side Scroller · Precision Platformer · Platformer

SANABI
Shared: 2D Platformer · Action · Difficult

Super Meat Boy Forever
Shared: Difficult · Precision Platformer · Action

Golfing Over It with Alva Majo
Shared: Difficult · Precision Platformer · Physics

Downwell
Shared: Precision Platformer · Platformer · Difficult

Egging On
Shared: Difficult · Psychological Horror · Physics

Peaks of Yore
Shared: Difficult · Psychological Horror · Physics

Will You Snail?
Shared: Precision Platformer · Difficult · 2D Platformer

Get To Work
Shared: Difficult · Precision Platformer · Third Person

The End Is Nigh
Shared: Precision Platformer · Difficult · Platformer

Splodey
Shared: Precision Platformer · Side Scroller · Difficult

Only Climb: Better Together
Shared: Precision Platformer · Difficult · Platformer

Spelunky 2
Shared: Difficult · 2D Platformer · Platformer

Noita
Shared: Physics · Difficult · Action

Pizza Tower
Shared: 2D Platformer · Platformer · Indie