Games like Abathor
Games like Abathor include Broforce, Shovel Knight: Treasure Trove, Celeste, SANABI, and Cuphead. We matched them by the tags players give Abathor on Steam (Platformer, Pixel Graphics, 2D, Action, and Indie): closest matches first, and among equally close ones the better-known games.

Broforce
Shared: Pixel Graphics · Action · 2D

Shovel Knight: Treasure Trove
Shared: Platformer · Pixel Graphics · 2D

Celeste
Shared: Pixel Graphics · Platformer · Difficult

SANABI
Shared: Pixel Graphics · Action · 2D

Cuphead
Shared: Platformer · Difficult · 2D

Super Meat Boy
Shared: Platformer · Pixel Graphics · Indie

Hollow Knight
Shared: Platformer · 2D · Difficult

Skul: The Hero Slayer
Shared: Pixel Graphics · Action · Indie

Katana ZERO
Shared: Pixel Graphics · Action · Platformer

The Messenger
Shared: Platformer · Pixel Graphics · Retro

Jump King
Shared: Pixel Graphics · Platformer · Indie

Hollow Knight: Silksong
Shared: Indie · 2D · Difficult

Sonic Mania
Shared: Platformer · 2D · Pixel Graphics

Blasphemous
Shared: Pixel Graphics · 2D · Souls-like

Pizza Tower
Shared: Platformer · Indie · Pixel Graphics

VVVVVV
Shared: Pixel Graphics · Platformer · Indie

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

Duck Game
Shared: Pixel Graphics · Action · 2D

Angry Video Game Nerd Adventures
Shared: Platformer · Action · Indie

NINJA GAIDEN: Ragebound
Shared: Platformer · Action · Pixel Graphics

Out There Somewhere
Shared: Platformer · Pixel Graphics · Indie

UFO 50
Shared: Pixel Graphics · Indie · Action

Blasphemous 2
Shared: Difficult · Pixel Graphics · Platformer

Terraria
Shared: 2D · Pixel Graphics · Adventure