Games like Reefglider
Games like Reefglider include Pumpkin Jack, Sonic Adventure DX, TY the Tasmanian Tiger, A Hat in Time, and Sonic Frontiers. We matched them by the tags players give Reefglider on Steam (3D Platformer, Platformer, Action, Underwater, and Relaxing): closest matches first, and among equally close ones the better-known games.

Pumpkin Jack
Shared: 3D Platformer · Action · Collectathon

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

TY the Tasmanian Tiger
Shared: 3D Platformer · Platformer · Action

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

Sonic Frontiers
Shared: 3D Platformer · Action · Platformer

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

Crash Bandicoot™ 4: It’s About Time
Shared: 3D Platformer · Action · Platformer

Psychonauts
Shared: Platformer · Action · 3D Platformer

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

SONIC X SHADOW GENERATIONS
Shared: 3D Platformer · Action · Platformer

SpongeBob SquarePants: The Cosmic Shake
Shared: 3D Platformer · Platformer · Action

Yooka-Laylee
Shared: 3D Platformer · Platformer · Collectathon

Wavetale
Shared: 3D Platformer · Platformer · 3D

Crash Bandicoot™ N. Sane Trilogy
Shared: 3D Platformer · Platformer · Action

Kena: Bridge of Spirits
Shared: Action · 3D Platformer · Adventure

Yellow Taxi Goes Vroom
Shared: 3D Platformer · Platformer · 3D

Pseudoregalia
Shared: 3D Platformer · Platformer · 3D

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

Ratchet & Clank: Rift Apart
Shared: 3D Platformer · Action · Platformer

ABZU
Shared: Relaxing · Underwater · Atmospheric

Sonic Lost World
Shared: Platformer · 3D Platformer · Action

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

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

Spark the Electric Jester 3
Shared: 3D Platformer · Action · Platformer