Games like Isles Above
Games like Isles Above include Another Crab's Treasure, Chained Together, A Hat in Time, ATLYSS, and Deaths Door. We matched them by the tags players give Isles Above on Steam (Casual, Action-Adventure, Action RPG, Platformer, and 3D Platformer): closest matches first, and among equally close ones the better-known games.

Another Crab's Treasure
Shared: Action RPG · 3D Platformer · Action-Adventure

Chained Together
Shared: Casual · Platformer · 3D Platformer

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

ATLYSS
Shared: Action RPG · 3D Platformer · Casual

Deaths Door
Shared: 3D Platformer · Action-Adventure · Cute

Sonic Frontiers
Shared: 3D Platformer · Action-Adventure · Exploration

Wavetale
Shared: Action-Adventure · 3D Platformer · Platformer

Refunct
Shared: 3D Platformer · Casual · Platformer

Toree 2
Shared: Action-Adventure · 3D Platformer · Platformer

Black Myth: Wukong
Shared: Action RPG · Action-Adventure · RPG

Pumpkin Jack
Shared: 3D Platformer · Collectathon · Platformer

ALTF4
Shared: Runner · 3D Platformer · Casual

Corn Kidz 64
Shared: 3D Platformer · Action-Adventure · Collectathon

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

FINAL FANTASY VII REMAKE INTERGRADE
Shared: Action RPG · Action-Adventure · RPG

Tinykin
Shared: Action-Adventure · 3D Platformer · Cartoony

Toree 3D
Shared: Platformer · 3D Platformer · Action-Adventure

Funi Raccoon Game
Shared: Casual · 3D Platformer · Platformer

Cirno! Lifts a Boulder
Shared: 3D Platformer · Casual · Platformer

FANTASY LIFE i: The Girl Who Steals Time
Shared: Casual · Action-Adventure · Exploration

Pseudoregalia
Shared: 3D Platformer · Platformer · Exploration

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

A Short Hike
Shared: Exploration · Casual · Cute

VHOLUME
Shared: Casual · 3D Platformer · Platformer