Games like Inexistence
Games like Inexistence include Dust: An Elysian Tail, Skul: The Hero Slayer, Hollow Knight, Shovel Knight: Treasure Trove, and Gato Roboto. We matched them by the tags players give Inexistence on Steam (Action, Adventure, Indie, RPG, and Metroidvania): closest matches first, and among equally close ones the better-known games.

Dust: An Elysian Tail
Shared: Action · Indie · Metroidvania

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

Hollow Knight
Shared: Metroidvania · Indie · Platformer

Shovel Knight: Treasure Trove
Shared: Indie · Adventure · Pixel Graphics

Gato Roboto
Shared: Action · Indie · Adventure

UnEpic
Shared: Indie · RPG · Action

Axiom Verge
Shared: Indie · Metroidvania · Action

Dead Cells
Shared: Adventure · Metroidvania · 2D

Rogue Legacy 2
Shared: Action · Metroidvania · Indie

UFO 50
Shared: Indie · Action · Pixel Graphics

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

The Messenger
Shared: Metroidvania · Platformer · Action

Blasphemous
Shared: Metroidvania · Pixel Graphics · Indie

Infernax
Shared: Action · Metroidvania · RPG

Rogue Legacy
Shared: Indie · Action · Platformer

SANABI
Shared: Action · Adventure · Pixel Graphics

Chasm
Shared: Indie · Adventure · Action

Broforce
Shared: Action · Pixel Graphics · 2D

Dungeon Munchies
Shared: Action · Indie · Adventure

Deaths Gambit: Afterlife
Shared: Metroidvania · Action · RPG

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

Out There Somewhere
Shared: Indie · Adventure · Pixel Graphics

Bloodstained: Ritual of the Night
Shared: Action · Metroidvania · RPG

Castle In The Darkness
Shared: Indie · Action · Metroidvania