Games like The Silence Outside
Games like The Silence Outside include Deus Ex: Mankind Divided, Feed and Grow: Fish, Deliver Us The Moon, Thief Simulator, and Deus Ex: Human Revolution - Director’s Cut. We matched them by the tags players give The Silence Outside on Steam (Indie, Early Access, Action, Adventure, and Simulation): closest matches first, and among equally close ones the better-known games.

Deus Ex: Mankind Divided
Shared: Action · RPG · Stealth

Feed and Grow: Fish
Shared: Simulation · Early Access · Action

Deliver Us The Moon
Shared: Indie · Adventure · Action

Thief Simulator
Shared: Simulation · Stealth · Adventure

Deus Ex: Human Revolution - Director’s Cut
Shared: Action · RPG · Stealth

Between the Stars
Shared: Action · Indie · RPG

鬼谷八荒 Tale of Immortal
Shared: Simulation · RPG · Action

Thief Simulator 2
Shared: Simulation · Action · Stealth

Exanima
Shared: RPG · Adventure · Action

Peripeteia
Shared: RPG · Stealth · Immersive Sim

EmergeNYC
Shared: Early Access · Simulation · Action

Touhou Big Big Battle
Shared: Early Access · Indie · Action

Ghost of a Tale
Shared: Adventure · Stealth · Indie

Rebel Galaxy
Shared: Adventure · RPG · Sci-fi

Middle-earth™: Shadow of Mordor™
Shared: Action · Adventure · Stealth

BioShock Infinite
Shared: Action · Adventure · RPG

Hyper Light Breaker
Shared: Action · Adventure · RPG

Dishonored
Shared: Action · Stealth · Adventure

The Witcher 3: Wild Hunt — Remastered
Shared: RPG · Adventure · Atmospheric

Middle-earth: Shadow of War
Shared: Action · RPG · Adventure

Last Oasis
Shared: Action · Indie · Adventure

Hyper Light Drifter
Shared: Indie · Adventure · Action

Bastion
Shared: Indie · Action · RPG

G2 Fighter / 基因特工
Shared: Indie · Action · Adventure