Games like Reign of Bullets
Games like Reign of Bullets include Guns, Gore & Cannoli, Skul: The Hero Slayer, Jets'n'Guns 2, My Friend Pedro, and ICEY. We matched them by the tags players give Reign of Bullets on Steam (Indie, Action, Shoot 'Em Up, and Side Scroller): closest matches first, and among equally close ones the better-known games.

Guns, Gore & Cannoli
Shared: Action · Side Scroller · Indie

Skul: The Hero Slayer
Shared: Indie · Action · Side Scroller

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

My Friend Pedro
Shared: Indie · Action · Side Scroller

ICEY
Shared: Action · Indie · Side Scroller

Streets of Rage 4
Shared: Action · Indie · Side Scroller

Huntdown
Shared: Action · Side Scroller · Shoot 'Em Up

Broforce
Shared: Action · Indie · Side Scroller

Blazing Chrome
Shared: Action · Indie · Side Scroller

DRAINUS
Shared: Action · Indie · Shoot 'Em Up

Zombotron
Shared: Action · Indie · Shoot 'Em Up

RADical ROACH Remastered
Shared: Indie · Action · Shoot 'Em Up

Intrusion 2
Shared: Indie · Action · Side Scroller

Cyberhunt
Shared: Indie · Action · Shoot 'Em Up

Valfaris
Shared: Indie · Action · Side Scroller

Guns, Gore and Cannoli 2
Shared: Action · Side Scroller · Shoot 'Em Up

Sine Mora
Shared: Indie · Shoot 'Em Up · Action

Deadlight
Shared: Action · Indie · Side Scroller

Shank
Shared: Action · Indie · Side Scroller

Alex Jones: NWO Wars
Shared: Action · Shoot 'Em Up · Side Scroller

Dungeon Munchies
Shared: Indie · Action · Side Scroller

Savant - Ascent
Shared: Indie · Action · Shoot 'Em Up

ZeroRanger
Shared: Indie · Shoot 'Em Up · Action

Bladed fury
Shared: Indie · Action · Side Scroller