Games like Tiny Onion Knight
Games like Tiny Onion Knight include Slime Rancher, Planet of Lana, Pikuniku, Unravel, and Carto. We matched them by the tags players give Tiny Onion Knight on Steam (Action, 2D Platformer, Adventure, Puzzle, and Casual): closest matches first, and among equally close ones the better-known games.

Slime Rancher
Shared: Adventure · Cute · Casual

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

Pikuniku
Shared: Adventure · Puzzle · Casual

Unravel
Shared: Action · Adventure · Puzzle

Carto
Shared: Puzzle · Cute · Adventure

The Last Campfire
Shared: Adventure · Puzzle · Cute

Scribblenauts Unlimited
Shared: Puzzle · Adventure · Casual

Webbed
Shared: 2D Platformer · Cute · Action

Slime Rancher 2
Shared: Cute · Adventure · Casual

Sonic Origins
Shared: Action · 2D Platformer · Adventure

TOEM: A Photo Adventure
Shared: Adventure · Puzzle · Cute

Hoa
Shared: 2D Platformer · Hand-drawn · Cute

Laughing to Die
Shared: Adventure · Puzzle · 2D Platformer

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

Machinarium
Shared: Puzzle · Hand-drawn · Adventure

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

Spyro™ Reignited Trilogy
Shared: Adventure · Action · Family Friendly

Stray
Shared: Adventure · Cute · Puzzle

Sonic Superstars
Shared: Action · 2D Platformer · Adventure

Rise of the Tomb Raider™
Shared: Action · Adventure · Puzzle

Figment
Shared: Action · Adventure · Puzzle

Tomb Raider Game of the Year
Shared: Action · Adventure · Puzzle

Spirit of the North
Shared: Adventure · Puzzle · Casual

Donut County
Shared: Casual · Puzzle · Cute