Games like VOIDCAST
Games like VOIDCAST include The Exit 8, Portal, The Talos Principle 2, September 7th, and Platform 8. We matched them by the tags players give VOIDCAST on Steam (Exploration, 3D Platformer, Puzzle Platformer, Hidden Object, and Puzzle): closest matches first, and among equally close ones the better-known games.

The Exit 8
Shared: Exploration · Puzzle · Walking Simulator

Portal
Shared: Puzzle Platformer · 3D Platformer · Puzzle

The Talos Principle 2
Shared: Puzzle · Exploration · Puzzle Platformer

September 7th
Shared: Exploration · 3D Platformer · Walking Simulator

Platform 8
Shared: Exploration · Walking Simulator · Puzzle

Scanner Sombre
Shared: Exploration · Walking Simulator · First-Person

Portal 2
Shared: Puzzle · Puzzle Platformer · First-Person

ANIMAL WELL
Shared: Exploration · Puzzle Platformer · Puzzle

What Remains of Edith Finch
Shared: Exploration · Walking Simulator · First-Person

Supraland
Shared: Exploration · Puzzle Platformer · First-Person

The Witness
Shared: Exploration · Puzzle · First-Person

Outer Wilds
Shared: Exploration · Puzzle · First-Person

SOMA
Shared: Exploration · Horror · Psychological Horror

Inside the Backrooms
Shared: Puzzle · Exploration · Horror

Firewatch
Shared: Exploration · Walking Simulator · First-Person

The Room 4: Old Sins
Shared: Puzzle · Hidden Object · Exploration

Lethal Company
Shared: Exploration · First-Person · Horror

INFRA
Shared: Exploration · Puzzle · Walking Simulator

The Unfinished Swan
Shared: Exploration · Puzzle · Puzzle Platformer

Garten of Banban
Shared: First-Person · Puzzle · Horror

Poppy Playtime
Shared: Puzzle · First-Person · Horror

NaissanceE
Shared: Exploration · Walking Simulator · First-Person

Layers of Fear (2016)
Shared: Walking Simulator · First-Person · Horror

Viewfinder
Shared: Puzzle Platformer · Puzzle · First-Person