Games like Eternal Nightmares
Games like Eternal Nightmares include False Dream, Sizeable, The Room, The Death | Thần Trùng, and Garten of Banban. We matched them by the tags players give Eternal Nightmares on Steam (Hidden Object, Indie, Walking Simulator, 3D, and Horror): closest matches first, and among equally close ones the better-known games.

False Dream
Shared: Hidden Object · Walking Simulator · Horror

Sizeable
Shared: Hidden Object · Indie · Casual

The Room
Shared: Hidden Object · Indie · Singleplayer

The Death | Thần Trùng
Shared: Indie · Horror · Casual

Garten of Banban
Shared: Horror · Singleplayer · 3D

Interior Worlds
Shared: Walking Simulator · Hidden Object · Horror

Buckshot Roulette
Shared: Horror · Indie · Singleplayer

Five Nights at Freddy's: Security Breach
Shared: Horror · Singleplayer · 3D

Hidden Folks
Shared: Hidden Object · Indie · Casual

The Room Two
Shared: Hidden Object · Indie · Horror

Cookie Clicker
Shared: Indie · Horror · Casual

Layers of Fear (2016)
Shared: Horror · Walking Simulator · Indie

Firewatch
Shared: Walking Simulator · Indie · Singleplayer

Frankenstein: Master of Death
Shared: Hidden Object · Indie · Casual

Metel - Horror Escape
Shared: Indie · Horror · Hidden Object

Librarian: Tidy Up the Arcane Library!
Shared: Hidden Object · Casual · Singleplayer

MiSide
Shared: Horror · 3D · Singleplayer

The Exit 8
Shared: Walking Simulator · Horror · 3D

Getting Over It with Bennett Foddy
Shared: Singleplayer · Horror · Indie

The Hat Man: Shadow Ward
Shared: Indie · Horror · Walking Simulator

Sinister City
Shared: Hidden Object · Indie · Casual

Alchemy Mysteries: Prague Legends
Shared: Hidden Object · Indie · Casual

Garten of Banban 2
Shared: Horror · Singleplayer · 3D

VERGE:Lost chapter
Shared: Walking Simulator · Indie · Horror