Games like The Bellows
Games like The Bellows include War Thunder, VRChat, Aimlabs, BONEWORKS, and The Walking Dead: Saints & Sinners. We matched them by the tags players give The Bellows on Steam (Adventure, Action, Simulation, Horror, and Free to Play): closest matches first, and among equally close ones the better-known games.

War Thunder
Shared: Action · Simulation · Free to Play

VRChat
Shared: VR · Free to Play · Simulation

Aimlabs
Shared: Simulation · Action · Free to Play

BONEWORKS
Shared: Action · VR · Adventure

The Walking Dead: Saints & Sinners
Shared: Action · VR · Adventure

The Forest
Shared: Adventure · Horror · Action

Five Nights at Freddy's: Secret of the Mimic
Shared: Adventure · Horror · Action

Once Human
Shared: Action · Free to Play · Adventure

Half-Life: Alyx
Shared: VR · Horror · Action

Resident Evil 4
Shared: Action · Horror · VR

Arizona Sunshine® VR Legacy
Shared: Action · VR · Horror

SURV1V3
Shared: Action · Adventure · VR

Hard Bullet
Shared: Action · VR · Simulation

Accounting+
Shared: Adventure · Action · VR

Resident Evil 7 Biohazard
Shared: Horror · VR · Action

Resident Evil Village
Shared: Action · Horror · VR

The Isle
Shared: Simulation · Adventure · Horror

Poppy Playtime
Shared: Horror · Free to Play · Adventure

Fishing Planet
Shared: Simulation · Free to Play · Adventure

Atomic Heart
Shared: Adventure · Action · Horror

I Expect You To Die 3: Cog in the Machine
Shared: Adventure · Action · Simulation

SMITE®
Shared: Action · Free to Play · Simulation

Resident Evil 4 (2005)
Shared: Action · Adventure · Horror