Games like A Game with a Kitty 1 & Darkside Adventures
Games like A Game with a Kitty 1 & Darkside Adventures include Hollow Knight, The Messenger, SANABI, F.I.S.T.: Forged In Shadow Torch, and Ori and the Will of the Wisps. We matched them by the tags players give A Game with a Kitty 1 & Darkside Adventures on Steam (Metroidvania, 2D Platformer, Platformer, Nonlinear, and Multiple Endings): closest matches first, and among equally close ones the better-known games.

Hollow Knight
Shared: Metroidvania · Platformer · Adventure

The Messenger
Shared: Metroidvania · Platformer · Pixel Graphics

SANABI
Shared: 2D Platformer · Pixel Graphics · Action

F.I.S.T.: Forged In Shadow Torch
Shared: Metroidvania · Platformer · 2D Platformer

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

Reventure
Shared: Multiple Endings · Adventure · Platformer

Dead Cells
Shared: Metroidvania · Adventure · Pixel Graphics

Hollow Knight: Silksong
Shared: Metroidvania · Platformer · Indie

Katana ZERO
Shared: Platformer · Action · Pixel Graphics

Axiom Verge
Shared: Metroidvania · Platformer · Pixel Graphics

Celeste
Shared: Platformer · 2D Platformer · Pixel Graphics

Shovel Knight: Treasure Trove
Shared: Platformer · Pixel Graphics · Action

Gato Roboto
Shared: Metroidvania · Action · Pixel Graphics

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

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

Blasphemous
Shared: Metroidvania · Pixel Graphics · Platformer

Sonic Origins
Shared: 2D Platformer · Action · Platformer

Rogue Legacy 2
Shared: Metroidvania · Platformer · Action

VVVVVV
Shared: Platformer · 2D Platformer · Pixel Graphics

Bloodstained: Curse of the Moon
Shared: Platformer · Metroidvania · Action

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

ANIMAL WELL
Shared: Metroidvania · Platformer · Pixel Graphics

Owlboy
Shared: Metroidvania · Platformer · Pixel Graphics

Super Meat Boy
Shared: Platformer · 2D Platformer · Pixel Graphics