Games like Eleonor's Nightmares
Games like Eleonor's Nightmares include Five Nights at Freddy's: Security Breach, Lethal Company, The Forest, Escape the Backrooms, and Inside the Backrooms. We matched them by the tags players give Eleonor's Nightmares on Steam (Adventure, Exploration, Horror, Thriller, and Survival Horror): closest matches first, and among equally close ones the better-known games.

Five Nights at Freddy's: Security Breach
Shared: Horror · Survival Horror · Exploration

Lethal Company
Shared: Horror · Exploration · Survival Horror

The Forest
Shared: Horror · Adventure · Survival Horror

Escape the Backrooms
Shared: Horror · Survival Horror · Exploration

Inside the Backrooms
Shared: Horror · Survival Horror · Adventure

Pacify
Shared: Horror · Exploration · Survival Horror

Dread Flats
Shared: Adventure · Horror · Thriller

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

Darkwood
Shared: Adventure · Horror · Survival Horror

Sons Of The Forest
Shared: Survival Horror · Horror · Exploration

Subnautica 2
Shared: Horror · Exploration · Adventure

Poppy Playtime
Shared: Horror · Survival Horror · Adventure

DreadOut
Shared: Adventure · Horror · Indie

The Beast Inside
Shared: Adventure · Horror · Survival Horror

Subnautica
Shared: Horror · Exploration · Adventure

OXENFREE II: Lost Signals
Shared: Adventure · Thriller · Supernatural

Firewatch
Shared: Adventure · Exploration · Indie

Subnautica: Below Zero
Shared: Horror · Exploration · Adventure

Look Outside
Shared: Horror · Survival Horror · Adventure

Dark Fracture: Prologue
Shared: Adventure · Horror · Exploration

Content Warning
Shared: Horror · Exploration · Survival Horror

Fears to Fathom - Ironbark Lookout
Shared: Horror · Exploration · Adventure

Backrooms: Escape Together
Shared: Horror · Survival Horror · Exploration

DREDGE
Shared: Exploration · Adventure · Horror