Games like Unihorn
Games like Unihorn include A Hat in Time, ATLYSS, Slime Rancher 2, Omno, and Sonic Frontiers. We matched them by the tags players give Unihorn on Steam (Wholesome, Cute, 3D Platformer, Horses, and Platformer): closest matches first, and among equally close ones the better-known games.

A Hat in Time
Shared: Cute · 3D Platformer · Platformer

ATLYSS
Shared: Cute · Character Customization · 3D Platformer

Slime Rancher 2
Shared: Cute · Relaxing · Adventure

Omno
Shared: Wholesome · Cute · Adventure

Sonic Frontiers
Shared: 3D Platformer · Adventure · 3D

Lil Gator Game
Shared: Cute · Wholesome · Relaxing

Sonic Adventure DX
Shared: 3D Platformer · Platformer · Adventure

Refunct
Shared: 3D Platformer · Platformer · Relaxing

Pumpkin Jack
Shared: 3D Platformer · Adventure · Third Person

WEBFISHING
Shared: Cute · Character Customization · 3D

Toree 3D
Shared: 3D Platformer · Cute · Platformer

Pseudoregalia
Shared: 3D Platformer · Platformer · 3D

Ratchet & Clank: Rift Apart
Shared: 3D Platformer · Adventure · Third Person

Here Comes Niko!
Shared: Cute · 3D Platformer · Relaxing

Smushi Come Home
Shared: Cute · Wholesome · Adventure

Last Train Outta' Wormtown
Shared: 3D Platformer · Platformer · Cute

Spyro™ Reignited Trilogy
Shared: 3D Platformer · Adventure · Platformer

Bomb Rush Cyberfunk
Shared: 3D Platformer · Adventure · 3D

Slime Rancher
Shared: Cute · Adventure · Colorful

Wavetale
Shared: 3D Platformer · Platformer · Adventure

A Short Hike
Shared: Cute · Adventure · Relaxing

Sonic Adventure 2
Shared: 3D Platformer · Platformer · Adventure

Lunistice
Shared: 3D Platformer · Cute · Platformer

Kao the Kangaroo: Round 2 (2003 re-release)
Shared: 3D Platformer · Platformer · Adventure