Games like An Octonaut Odyssey
Games like An Octonaut Odyssey include LIMBO, Out There Somewhere, Defy Gravity Extended, Hollow Knight, and FEZ. We matched them by the tags players give An Octonaut Odyssey on Steam (Indie, Casual, Adventure, Platformer, and 2D): closest matches first, and among equally close ones the better-known games.

LIMBO
Shared: Indie · Platformer · Puzzle Platformer

Out There Somewhere
Shared: Indie · Platformer · Adventure

Defy Gravity Extended
Shared: Indie · Platformer · 2D

Hollow Knight
Shared: Platformer · Indie · 2D

FEZ
Shared: Indie · Platformer · Adventure

Hollow Knight: Silksong
Shared: Indie · 2D · Platformer

BEEP
Shared: Indie · Adventure · Platformer

Shovel Knight: Treasure Trove
Shared: Platformer · Indie · Adventure

GRIS
Shared: Indie · Adventure · Platformer

Nihilumbra
Shared: Indie · Adventure · Platformer

Chained Together
Shared: Adventure · Casual · Platformer

Reventure
Shared: Indie · Adventure · 2D

Pikuniku
Shared: Indie · Casual · Adventure

Celeste
Shared: Indie · Platformer · 2D

MO:Astray
Shared: Indie · Adventure · Platformer

Axiom Verge
Shared: Indie · Platformer · 2D

Pinstripe
Shared: Indie · Casual · Adventure

Squishy the Suicidal Pig
Shared: Indie · Platformer · Adventure

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

Melvor Idle
Shared: Casual · Indie · Adventure

Gato Roboto
Shared: Indie · Adventure · 2D

DLC Quest
Shared: Indie · Platformer · 2D

Hue
Shared: Indie · Adventure · Platformer

Minimalism
Shared: Indie · Casual · Platformer