Games like Ravva and the Phantom Library
Games like Ravva and the Phantom Library include SANABI, Broforce, Sonic Origins, Shovel Knight: Treasure Trove, and Celeste. We matched them by the tags players give Ravva and the Phantom Library on Steam (Action, Adventure, Platformer, Shooter, and 2D Platformer): closest matches first, and among equally close ones the better-known games.

SANABI
Shared: Action · Adventure · Pixel Graphics

Broforce
Shared: Action · Platformer · Pixel Graphics

Sonic Origins
Shared: Action · Adventure · 2D Platformer

Shovel Knight: Treasure Trove
Shared: Platformer · Adventure · Action

Celeste
Shared: Platformer · Pixel Graphics · 2D Platformer

Webbed
Shared: 2D Platformer · Cute · Platformer

Gal Guardians: Demon Purge
Shared: Action · Adventure · Platformer

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

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

Katana ZERO
Shared: Action · Platformer · Pixel Graphics

NINJA GAIDEN: Ragebound
Shared: Action · Platformer · 2D Platformer

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

Blasphemous 2
Shared: Adventure · 2D Platformer · Pixel Graphics

Gato Roboto
Shared: Action · Adventure · Platformer

Sonic Mania
Shared: Platformer · Adventure · Action

Ori and the Will of the Wisps
Shared: Platformer · Action · Adventure

MO:Astray
Shared: Action · Adventure · Platformer

Smilemo
Shared: Action · Adventure · Platformer

BioShock Infinite
Shared: Action · Shooter · Adventure

Pizza Tower
Shared: 2D Platformer · Platformer · Action

Dust: An Elysian Tail
Shared: Action · Platformer · Adventure

Planet of Lana
Shared: Action · 2D Platformer · Platformer

Tribal Hunter
Shared: Action · 2D Platformer · Platformer

Owlboy
Shared: Adventure · Platformer · Pixel Graphics