Games like Silent Still 2
Games like Silent Still 2 include Summer of '58, MiSide, Mouthwashing, September 7th, and Buckshot Roulette. We matched them by the tags players give Silent Still 2 on Steam (Simulation, Walking Simulator, First-Person, 3D, and Horror): closest matches first, and among equally close ones the better-known games.

Summer of '58
Shared: Horror · Walking Simulator · First-Person

MiSide
Shared: Psychological Horror · First-Person · Horror

Mouthwashing
Shared: Horror · Psychological Horror · Walking Simulator

September 7th
Shared: Walking Simulator · Horror · First-Person

Buckshot Roulette
Shared: First-Person · Horror · Dark

Dollmare
Shared: Simulation · 3D · Horror

No, I'm not a Human
Shared: Horror · Psychological Horror · First-Person

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

The Cabin Factory
Shared: Walking Simulator · Horror · Psychological Horror

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

Visage
Shared: Horror · First-Person · Psychological Horror

Outlast
Shared: First-Person · Horror · Psychological Horror

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

Welcome to Kowloon
Shared: Horror · Walking Simulator · First-Person

DON'T SCREAM
Shared: First-Person · Walking Simulator · Horror

From The Darkness
Shared: Horror · First-Person · Walking Simulator

Zoochosis
Shared: 3D · Realistic · Simulation

SOMA
Shared: Horror · Psychological Horror · Atmospheric

Phasmophobia
Shared: Horror · Psychological Horror · First-Person

Still Wakes the Deep
Shared: Horror · First-Person · Walking Simulator

Locked Up
Shared: Simulation · Horror · First-Person

Poppy Playtime
Shared: Horror · First-Person · Psychological Horror

Father's Day
Shared: Simulation · Walking Simulator · Psychological Horror

Five Nights at Freddy's
Shared: Horror · Psychological Horror · First-Person