Games like Top Gnome
Games like Top Gnome include SNKRX, Chippy, Bit Blaster XL, 12 is Better Than 6, and Sky Force Reloaded. We matched them by the tags players give Top Gnome on Steam (Arena Shooter, Top-Down Shooter, Difficult, Physics, and 2D): closest matches first, and among equally close ones the better-known games.
SNKRX
Shared: Arena Shooter · Top-Down Shooter · Shoot 'Em Up
Chippy
Shared: Arena Shooter · Top-Down Shooter · Difficult
Bit Blaster XL
Shared: Difficult · 2D · Shooter
12 is Better Than 6
Shared: Top-Down Shooter · Action · Shooter
Sky Force Reloaded
Shared: Top-Down Shooter · Shoot 'Em Up · Action
Hotline Miami 2: Wrong Number
Shared: Difficult · Action · Top-Down
Cuphead
Shared: Difficult · 2D · Action
BALL x PIT
Shared: Action · Top-Down Shooter · Arcade
Noita
Shared: Physics · Difficult · 2D
Hotline Miami
Shared: Action · Top-Down · Difficult
Kill The Crows
Shared: Top-Down Shooter · Action · Arena Shooter
Planes, Bullets and Vodka
Shared: Action · 2D · Shoot 'Em Up
Hollow Knight
Shared: Difficult · 2D · Indie
Orbt XL
Shared: Difficult · 2D · Action
Nova Drift
Shared: Arena Shooter · Shoot 'Em Up · Shooter
Intrusion 2
Shared: Action · Physics · 2D
SYNTHETIK: Legion Rising
Shared: Top-Down Shooter · Action · Difficult
Geometry Dash
Shared: Difficult · 2D · Singleplayer
Hollow Knight: Silksong
Shared: Difficult · 2D · Indie
Super Hexagon
Shared: Difficult · Action · Arcade
A Dance of Fire and Ice
Shared: Difficult · 2D · Action
Nuclear Throne
Shared: Difficult · Top-Down Shooter · Action
The Binding of Isaac
Shared: Difficult · Action · Top-Down
Titan Attacks!
Shared: Arena Shooter · Top-Down Shooter · Difficult