Games like Star Runner
Games like Star Runner include Broforce, Streets of Rage 4, Starblast, Exit the Gungeon, and LUFTRAUSERS. We matched them by the tags players give Star Runner on Steam (Indie, Space, Arcade, Shooter, and 2D): closest matches first, and among equally close ones the better-known games.

Broforce
Shared: Action · 2D · Indie

Streets of Rage 4
Shared: Indie · Action · 2D

Starblast
Shared: Space · Indie · Action

Exit the Gungeon
Shared: Indie · Arcade · Action

LUFTRAUSERS
Shared: Indie · Arcade · Action

Bit Blaster XL
Shared: Shooter · Arcade · 2D

Star Saviors
Shared: Indie · Space · Action

Defy Gravity Extended
Shared: Indie · Space · 2D

Chorus
Shared: Indie · Space · Action

My Friend Pedro
Shared: Indie · Shooter · Action

EVERSPACE™
Shared: Space · Indie · Action

Reassembly
Shared: Space · Indie · 2D

Cyberhunt
Shared: Indie · Action · Arcade

UFO 50
Shared: Indie · Arcade · 2D

Rogue Legacy 2
Shared: Arcade · Indie · Action

Nova Drift
Shared: Arcade · Shooter · Indie

Vampire Survivors
Shared: Indie · 2D · Arcade

Beat Hazard
Shared: Space · Indie · 2D

PARTICLE MACE
Shared: Indie · Arcade · Action

ZeroRanger
Shared: Indie · Arcade · Action

Skul: The Hero Slayer
Shared: Indie · Action · 2D

Alex Jones: NWO Wars
Shared: Arcade · Shooter · Action

12 is Better Than 6
Shared: Shooter · Indie · Action

KovaaK's
Shared: Shooter · Indie · Action

