Games like Brathian
Games like Brathian include Broforce, Shovel Knight: Treasure Trove, Super Meat Boy, Cuphead, and Katana ZERO. We matched them by the tags players give Brathian on Steam (Platformer, Retro, 2D, Pixel Graphics, and Action): closest matches first, and among equally close ones the better-known games.

Broforce
Shared: Pixel Graphics · Action · 2D

Shovel Knight: Treasure Trove
Shared: Platformer · Retro · Pixel Graphics

Super Meat Boy
Shared: Platformer · Pixel Graphics · 2D

Cuphead
Shared: Platformer · 2D · Co-op

Katana ZERO
Shared: Pixel Graphics · Platformer · Action

SANABI
Shared: Pixel Graphics · Action · 2D Platformer

The Messenger
Shared: Platformer · Retro · Pixel Graphics

Sonic Mania
Shared: Platformer · 2D · Retro

Celeste
Shared: Pixel Graphics · Platformer · 2D Platformer

Brawlhalla
Shared: Platformer · 2D Platformer · Action

VVVVVV
Shared: Platformer · Pixel Graphics · Retro

Pizza Tower
Shared: 2D Platformer · Platformer · Pixel Graphics

Duck Game
Shared: Pixel Graphics · 2D · Platformer

Gravity Circuit
Shared: Platformer · Action · Pixel Graphics

Door Kickers: Action Squad
Shared: Retro · Pixel Graphics · 2D Platformer

Terraria
Shared: 2D · Pixel Graphics · Exploration

Webbed
Shared: Pixel Graphics · 2D Platformer · Platformer

Bloodstained: Curse of the Moon 2
Shared: Retro · Platformer · Action

BattleBlock Theater®
Shared: Platformer · 2D · Co-op

Hollow Knight
Shared: Platformer · 2D · Exploration

Bloodstained: Curse of the Moon
Shared: Retro · Platformer · Pixel Graphics

Sonic Origins
Shared: Retro · Action · Platformer

Skul: The Hero Slayer
Shared: Action · Pixel Graphics · 2D

Bread & Fred
Shared: Pixel Graphics · Platformer · 2D Platformer