Games like Skybound
Games like Skybound include Sonic Frontiers, Portal 2, Chained Together, Phantom Abyss, and Ori and the Will of the Wisps. We matched them by the tags players give Skybound on Steam (Action, Platformer, Casual, Adventure, and Action-Adventure): closest matches first, and among equally close ones the better-known games.

Sonic Frontiers
Shared: Action · Adventure · 3D Platformer

Portal 2
Shared: Platformer · First-Person · Action

Chained Together
Shared: Platformer · Adventure · Casual

Phantom Abyss
Shared: Action · Adventure · Platformer

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

Mirror's Edge™
Shared: Action-Adventure · Platformer · 3D Platformer

Five Nights at Freddy's: Secret of the Mimic
Shared: Action · Adventure · VR

Kena: Bridge of Spirits
Shared: Action · Adventure · Action-Adventure

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

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

A Story About My Uncle
Shared: Adventure · Platformer · First-Person

Kao the Kangaroo: Round 2 (2003 re-release)
Shared: Action · Adventure · Casual

Crimson Desert Enhanced
Shared: Action · Adventure · Exploration

Toree 2
Shared: Action · Platformer · Adventure

Pumpkin Jack
Shared: Action · Adventure · 3D Platformer

Mirror's Edge™ Catalyst
Shared: Action · 3D Platformer · Platformer

Crash Bandicoot™ 4: It’s About Time
Shared: Action · Platformer · Adventure

Pseudoregalia
Shared: 3D Platformer · Platformer · Exploration

Marvel’s Spider-Man Remastered
Shared: Action · Adventure · Action-Adventure

Refunct
Shared: 3D Platformer · Casual · Platformer

Moss VR
Shared: Adventure · VR · Action

Tomb Raider I-III Remastered Starring Lara Croft
Shared: Action · Action-Adventure · Adventure

Tomb Raider IV-VI Remastered
Shared: Action · Platformer · Adventure

Gorilla Tag
Shared: VR · Action · First-Person