Games like Jets'n'Guns Gold
Games like Jets'n'Guns Gold include Cuphead, Star Saviors, ZeroRanger, Ikaruga, and LUFTRAUSERS. We matched them by the tags players give Jets'n'Guns Gold on Steam (Shoot 'Em Up, Side Scroller, Action, Indie, and Bullet Hell): closest matches first, and among equally close ones the better-known games.

Cuphead
Shared: Great Soundtrack · Difficult · Indie

Star Saviors
Shared: Shoot 'Em Up · Action · Great Soundtrack

ZeroRanger
Shared: Shoot 'Em Up · Great Soundtrack · Indie

Ikaruga
Shared: Shoot 'Em Up · Great Soundtrack · Bullet Hell

LUFTRAUSERS
Shared: Indie · Action · Bullet Hell

Geometry Dash
Shared: Great Soundtrack · Difficult · 2D

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

Touhou Koumakyou: New Classic - the Embodiment of Scarlet Devil
Shared: Shoot 'Em Up · Bullet Hell · Great Soundtrack

Shovel Knight: Treasure Trove
Shared: Great Soundtrack · Indie · Action

Touhou Tenkuushou ~ Hidden Star in Four Seasons.
Shared: Great Soundtrack · Shoot 'Em Up · Bullet Hell

Jets'n'Guns 2
Shared: Shoot 'Em Up · Action · Great Soundtrack

Hotline Miami
Shared: Great Soundtrack · Action · Indie

Hollow Knight: Silksong
Shared: Great Soundtrack · Indie · Difficult

My Friend Pedro
Shared: Action · Indie · Great Soundtrack

Hotline Miami 2: Wrong Number
Shared: Great Soundtrack · Action · Difficult

DARIUSBURST Chronicle Saviours
Shared: Shoot 'Em Up · Great Soundtrack · Action

Hollow Knight
Shared: Great Soundtrack · Difficult · Indie

Just Shapes & Beats
Shared: Great Soundtrack · Bullet Hell · Difficult

Touhou Kouryudou ~ Unconnected Marketeers.
Shared: Shoot 'Em Up · Action · Great Soundtrack

Touhou Fuujinroku ~ Mountain of Faith.
Shared: Great Soundtrack · Action · Shoot 'Em Up

METAL SLUG 3
Shared: Action · Side Scroller · Arcade

Zombotron
Shared: Action · Indie · 2D

Savant - Ascent
Shared: Great Soundtrack · Action · Shoot 'Em Up

Revolution Ace
Shared: Shoot 'Em Up · Action · Indie