Games like Iluminatus Bizarre Ascent
Games like Iluminatus Bizarre Ascent include Celeste, SANABI, Pizza Tower, Super Meat Boy, and Thomas Was Alone. We matched them by the tags players give Iluminatus Bizarre Ascent on Steam (Adventure, 2D Platformer, Side Scroller, 2D, and Cartoony): closest matches first, and among equally close ones the better-known games.

Celeste
Shared: 2D Platformer · Pixel Graphics · Precision Platformer

SANABI
Shared: 2D Platformer · Adventure · Pixel Graphics

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

Super Meat Boy
Shared: 2D Platformer · Precision Platformer · 2D

Thomas Was Alone
Shared: Side Scroller · 2D Platformer · 2D

VVVVVV
Shared: 2D Platformer · Pixel Graphics · Precision Platformer

Momodora: Reverie Under The Moonlight
Shared: 2D Platformer · Side Scroller · Pixel Graphics

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

Super Bernie World
Shared: Adventure · 2D Platformer · Pixel Graphics

Katana ZERO
Shared: Pixel Graphics · 2D Platformer · 2D

Smilemo
Shared: Adventure · 2D Platformer · 2D

Blasphemous 2
Shared: Adventure · 2D Platformer · Side Scroller

Webbed
Shared: 2D Platformer · Pixel Graphics · 2D

Jump King
Shared: Adventure · Pixel Graphics · 2D

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

Anomaly Agent
Shared: 2D Platformer · Side Scroller · Platformer

Owlboy
Shared: Adventure · Pixel Graphics · 2D

Downwell
Shared: 2D Platformer · Pixel Graphics · Precision Platformer

Sonic Mania
Shared: 2D · Adventure · Pixel Graphics

Dead Cells
Shared: Adventure · 2D · Pixel Graphics

Himno
Shared: 2D · Adventure · Pixel Graphics

Thank Goodness You're Here!
Shared: Adventure · 2D Platformer · 2D

Hollow Knight
Shared: 2D · Platformer · Adventure

To the Moon
Shared: Adventure · Pixel Graphics · Indie