Games like Crash Test Oliver
Games like Crash Test Oliver include Hollow Knight, Hollow Knight: Silksong, Ori and the Will of the Wisps, Rogue Legacy 2, and Bloodstained: Ritual of the Night. We matched them by the tags players give Crash Test Oliver on Steam (Metroidvania, Platformer, Difficult, Nonlinear, and Side Scroller): closest matches first, and among equally close ones the better-known games.
Hollow Knight
Shared: Metroidvania · Platformer · Difficult
Hollow Knight: Silksong
Shared: Metroidvania · Difficult · Platformer
Ori and the Will of the Wisps
Shared: Metroidvania · Platformer · Singleplayer
Rogue Legacy 2
Shared: Metroidvania · Platformer · Difficult
Bloodstained: Ritual of the Night
Shared: Metroidvania · Platformer · Side Scroller
Nine Sols
Shared: Metroidvania · Difficult · Platformer
Shovel Knight: Treasure Trove
Shared: Platformer · Retro · Difficult
Bloodstained: Curse of the Moon
Shared: Platformer · Metroidvania · Retro
The Messenger
Shared: Platformer · Metroidvania · Retro
Touhou Luna Nights
Shared: Metroidvania · Difficult · Side Scroller
Skul: The Hero Slayer
Shared: Platformer · Metroidvania · Singleplayer
Gato Roboto
Shared: Metroidvania · Platformer · Retro
Axiom Verge
Shared: Metroidvania · Platformer · Retro
F.I.S.T.: Forged In Shadow Torch
Shared: Metroidvania · Platformer · Singleplayer
Dust: An Elysian Tail
Shared: Platformer · Metroidvania · Singleplayer
Super Meat Boy
Shared: Platformer · Difficult · Singleplayer
GRIME
Shared: Metroidvania · Platformer · Difficult
La-Mulana
Shared: Metroidvania · Platformer · Difficult
Blasphemous
Shared: Metroidvania · Difficult · Platformer
Pseudoregalia
Shared: Metroidvania · Platformer · Singleplayer
Rogue Legacy
Shared: Platformer · Metroidvania · Singleplayer
Salt and Sanctuary
Shared: Metroidvania · Difficult · Platformer
Celeste
Shared: Difficult · Platformer · Singleplayer
Volgarr the Viking
Shared: Platformer · Difficult · Retro