Games like Boss Rush
Games like Boss Rush include Skul: The Hero Slayer, Hotline Miami, Titan Souls, Hades, and My Friend Pedro. We matched them by the tags players give Boss Rush on Steam (Action, Indie, Boss Rush, and Downloadable Content): closest matches first, and among equally close ones the better-known games.

Skul: The Hero Slayer
Shared: Action · Indie

Hotline Miami
Shared: Action · Indie

Titan Souls
Shared: Indie · Action · Boss Rush

Hades
Shared: Indie · Action

My Friend Pedro
Shared: Action · Indie

KovaaK's
Shared: Action · Indie

Bright Memory: Infinite
Shared: Action · Indie

SUPERHOT
Shared: Action · Indie

Bastion
Shared: Indie · Action

Streets of Rage 4
Shared: Action · Indie

Broforce
Shared: Action · Indie

Katana ZERO
Shared: Action · Indie

Rubinite
Shared: Boss Rush · Indie · Action

The Void Rains Upon Her Heart
Shared: Indie · Action · Boss Rush

Dust: An Elysian Tail
Shared: Action · Indie

One Finger Death Punch
Shared: Action · Indie

ICEY
Shared: Action · Indie

Project Wingman
Shared: Action · Indie

Drug Dealer Simulator
Shared: Action · Indie

Dungeon Munchies
Shared: Action · Indie

Clone Drone in the Danger Zone
Shared: Action · Indie

Risk of Rain (2013)
Shared: Indie · Action

Bean Battles
Shared: Action · Indie

The Binding of Isaac
Shared: Indie · Action