Games like Nourish
Games like Nourish include Five Nights at Freddy's, Oxygen Not Included, Poppy Playtime, Outlast, and Five Nights at Freddy's 2. We matched them by the tags players give Nourish on Steam (Singleplayer, Psychological Horror, Resource Management, Retro, and Survival): closest matches first, and among equally close ones the better-known games.

Five Nights at Freddy's
Shared: Singleplayer · Psychological Horror · Survival

Oxygen Not Included
Shared: Resource Management · Singleplayer · Survival

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

Outlast
Shared: Psychological Horror · Singleplayer · First-Person

Five Nights at Freddy's 2
Shared: Singleplayer · Psychological Horror · First-Person

Buckshot Roulette
Shared: Singleplayer · First-Person · Dark

Outlast 2
Shared: Psychological Horror · Singleplayer · First-Person

Ultimate Custom Night
Shared: Singleplayer · Survival · First-Person

CloverPit
Shared: Psychological Horror · Singleplayer · First-Person

Five Nights at Freddy's 3
Shared: Singleplayer · Psychological Horror · First-Person

Five Nights at Freddy's 4
Shared: Singleplayer · Psychological Horror · First-Person

Five Nights at Freddy's: Sister Location
Shared: Singleplayer · Survival · First-Person

MiSide
Shared: Psychological Horror · Singleplayer · First-Person

Dead Space
Shared: Singleplayer · Psychological Horror · Space

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

This War of Mine
Shared: Singleplayer · Survival · Resource Management

Dome Keeper
Shared: Singleplayer · Resource Management · Pixel Graphics

Dyson Sphere Program
Shared: Resource Management · Space · Singleplayer

ROUTINE
Shared: Singleplayer · Psychological Horror · Sci-fi

Frostpunk
Shared: Resource Management · Survival · Singleplayer

Mouthwashing
Shared: Psychological Horror · Retro · Singleplayer

Alien: Isolation
Shared: Singleplayer · Sci-fi · First-Person

The Alters
Shared: Survival · Singleplayer · Resource Management

No, I'm not a Human
Shared: Psychological Horror · Singleplayer · Indie