Games like Adorable Dog: Gnomeageddon
Games like Adorable Dog: Gnomeageddon include Planes, Bullets and Vodka, BALL x PIT, Vampire Survivors, Sky Force Reloaded, and LUFTRAUSERS. We matched them by the tags players give Adorable Dog: Gnomeageddon on Steam (Bullet Hell, Top-Down, Shoot 'Em Up, Top-Down Shooter, and Shooter): closest matches first, and among equally close ones the better-known games.

Planes, Bullets and Vodka
Shared: Shoot 'Em Up · Bullet Hell · Arcade

BALL x PIT
Shared: Bullet Hell · Arcade · Shoot 'Em Up

Vampire Survivors
Shared: Bullet Hell · 2D · Singleplayer

Sky Force Reloaded
Shared: Bullet Hell · Shoot 'Em Up · Top-Down Shooter

LUFTRAUSERS
Shared: Bullet Hell · Arcade · Shoot 'Em Up

Bit Blaster XL
Shared: Bullet Hell · Shoot 'Em Up · Shooter

Minishoot' Adventures
Shared: Bullet Hell · Top-Down · Top-Down Shooter

Revolution Ace
Shared: Shoot 'Em Up · Bullet Hell · Shooter

Cyberhunt
Shared: Shoot 'Em Up · Arcade · 2D

Bot Vice
Shared: Bullet Hell · Top-Down Shooter · Shoot 'Em Up

Nova Drift
Shared: Bullet Hell · Shoot 'Em Up · Arcade

Exit the Gungeon
Shared: Bullet Hell · Arcade · 2D

20 Minutes Till Dawn
Shared: Bullet Hell · Shoot 'Em Up · Top-Down Shooter

Chippy
Shared: Bullet Hell · Shoot 'Em Up · Top-Down Shooter

ZeroRanger
Shared: Bullet Hell · Shoot 'Em Up · Arcade

DoDonPachi Resurrection
Shared: Bullet Hell · Shoot 'Em Up · Top-Down Shooter

Waves
Shared: Bullet Hell · Shoot 'Em Up · Top-Down

Deep Rock Galactic: Survivor
Shared: Bullet Hell · Top-Down Shooter · Top-Down

Rocket Rats
Shared: Bullet Hell · 2D · Singleplayer

Crimzon Clover World EXplosion
Shared: Bullet Hell · Shoot 'Em Up · Top-Down

Phoenix Force
Shared: Bullet Hell · Top-Down Shooter · Shoot 'Em Up

UBERMOSH Vol.5
Shared: Bullet Hell · Arcade · Top-Down Shooter

Escape From Duckov
Shared: Top-Down Shooter · Shooter · Top-Down

DELTARUNE
Shared: Bullet Hell · Singleplayer · 2D