Games like Spacenoids
Games like Spacenoids include Portal 2, Chained Together, A Hat in Time, Ratchet & Clank: Rift Apart, and Pumpkin Jack. We matched them by the tags players give Spacenoids on Steam (3D Platformer, Puzzle Platformer, Collectathon, Platformer, and Adventure): closest matches first, and among equally close ones the better-known games.

Portal 2
Shared: Platformer · Puzzle Platformer · 3D Platformer

Chained Together
Shared: Platformer · Adventure · Puzzle Platformer

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

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

Pumpkin Jack
Shared: 3D Platformer · Adventure · Collectathon

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

Portal
Shared: Puzzle Platformer · 3D Platformer · Sci-fi

Wavetale
Shared: 3D Platformer · Adventure · Platformer

SpongeBob SquarePants: Titans of the Tide
Shared: 3D Platformer · Platformer · Adventure

STAR WARS Jedi: Fallen Order™
Shared: Action-Adventure · Third Person · Platformer

Trine 3: The Artifacts of Power
Shared: Puzzle Platformer · 3D Platformer · Action-Adventure

The Plucky Squire
Shared: 3D Platformer · Adventure · Puzzle Platformer

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

Supraland
Shared: Puzzle Platformer · Adventure · 3D Platformer

Psychonauts
Shared: Platformer · Adventure · 3D Platformer

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

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

Orbo's Odyssey
Shared: 3D Platformer · Action-Adventure · Adventure

Warhammer 40,000: Space Marine 2
Shared: Adventure · Action-Adventure · Third Person

Carry The Glass
Shared: Puzzle Platformer · 3D Platformer · Adventure

Hypogea
Shared: 3D Platformer · Adventure · Puzzle Platformer

Solar Ash
Shared: 3D Platformer · Adventure · Platformer

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

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