Games like Water Gun Cat
Games like Water Gun Cat include SANABI, Celeste, Shovel Knight: Treasure Trove, Trine 2: Complete Story, and Gato Roboto. We matched them by the tags players give Water Gun Cat on Steam (Casual, Adventure, Cats, Platformer, and Side Scroller): closest matches first, and among equally close ones the better-known games.

SANABI
Shared: Adventure · 2D Platformer · Singleplayer

Celeste
Shared: Platformer · Indie · 2D Platformer

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

Trine 2: Complete Story
Shared: Platformer · 2D Platformer · Action-Adventure

Gato Roboto
Shared: Adventure · Indie · Cats

Nyan Cat: Lost In Space
Shared: Cats · Adventure · Platformer

Cat Quest
Shared: Adventure · Cats · Casual

CATO: Buttered Cat
Shared: Cats · Adventure · Platformer

Sonic Origins
Shared: Adventure · 2D Platformer · Casual

Stray
Shared: Adventure · Cats · Singleplayer

The Purring Quest
Shared: Cats · Platformer · Indie

FEZ
Shared: Platformer · Indie · Adventure

Slime Rancher
Shared: Adventure · Singleplayer · Casual

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

Pikuniku
Shared: Adventure · Casual · Indie

Florence
Shared: Casual · Adventure · Indie

Sonic Mania
Shared: Platformer · Adventure · Side Scroller

Skul: The Hero Slayer
Shared: Indie · Platformer · Singleplayer

Hollow Knight
Shared: Platformer · Indie · Adventure

Klonoa Phantasy Reverie Series
Shared: Adventure · Side Scroller · Platformer

Trine Enchanted Edition
Shared: 2D Platformer · Fantasy · Action-Adventure

A Story About My Uncle
Shared: Adventure · Indie · Platformer

Chained Together
Shared: Adventure · Casual · Platformer

Owlboy
Shared: Adventure · Platformer · Indie