Games like The Oneironaut
Games like The Oneironaut include VHOLUME, Pseudoregalia, Haste, A Story About My Uncle, and INSIDE. We matched them by the tags players give The Oneironaut on Steam (Runner, 2D Platformer, Parkour, Surreal, and Platformer): closest matches first, and among equally close ones the better-known games.

VHOLUME
Shared: Parkour · Runner · Platformer

Pseudoregalia
Shared: Parkour · Platformer · 3D

Haste
Shared: Parkour · Runner · Action

A Story About My Uncle
Shared: Parkour · Platformer · Adventure

INSIDE
Shared: 2.5D · Atmospheric · 2D Platformer

F.I.S.T.: Forged In Shadow Torch
Shared: Platformer · 2D Platformer · Action

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

Deadlight
Shared: Platformer · Parkour · Action

MOTORSLICE
Shared: Parkour · Platformer · Third Person

Vector
Shared: Parkour · Runner · Platformer

SANABI
Shared: 2D Platformer · Platformer · Action

Prince of Persia®
Shared: Parkour · Platformer · Third Person

Prince of Persia®: The Sands of Time
Shared: Parkour · Platformer · Third Person

Seen
Shared: Platformer · Indie · 2.5D

GuGu Pizza : Delivering Pizza to the Space Station? Boss, this is just not right!
Shared: 2D Platformer · Platformer · 2.5D

Mirror's Edge™ Catalyst
Shared: Parkour · Runner · Platformer

Moncage
Shared: Surreal · Casual · Indie

Prince of Persia: Warrior Within™
Shared: Parkour · Third Person · Platformer

LIMBO
Shared: Platformer · Surreal · Indie

The Pedestrian
Shared: 2D Platformer · Platformer · 2.5D

Super Fancy Pants Adventure
Shared: Platformer · Parkour · Casual

Celeste
Shared: 2D Platformer · Platformer · Indie

ALTF4
Shared: Runner · Third Person · Platformer

SONIC X SHADOW GENERATIONS
Shared: Platformer · 2D Platformer · 3D