Games like Nightmare Medica
Games like Nightmare Medica include Firewatch, Scanner Sombre, What Remains of Edith Finch, Escape the Backrooms, and Layers of Fear (2016). We matched them by the tags players give Nightmare Medica on Steam (Exploration, FPS, Adventure, Walking Simulator, and Action-Adventure): closest matches first, and among equally close ones the better-known games.

Firewatch
Shared: Adventure · Walking Simulator · Exploration

Scanner Sombre
Shared: Exploration · Walking Simulator · Adventure

What Remains of Edith Finch
Shared: Walking Simulator · Exploration · Adventure

Escape the Backrooms
Shared: Horror · Exploration · Psychological Horror

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

Inside the Backrooms
Shared: Horror · Exploration · Adventure

The Exit 8
Shared: Exploration · Walking Simulator · Horror

Journey
Shared: Adventure · Exploration · Atmospheric

Bad Parenting 1: Mr. Red Face
Shared: Adventure · Walking Simulator · Horror

Little Nightmares II
Shared: Adventure · Horror · Psychological Horror

Fears to Fathom - Woodbury Getaway
Shared: Adventure · Psychological Horror · Horror

SOMA
Shared: Horror · Exploration · Psychological Horror

Amnesia: A Machine For Pigs
Shared: Walking Simulator · Exploration · Horror

Outer Wilds
Shared: Exploration · Adventure · Atmospheric

Stray
Shared: Adventure · Exploration · Atmospheric

Cairn
Shared: Exploration · Adventure · Indie

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

SILENT HILL: Townfall
Shared: Adventure · Exploration · Horror

Fears to Fathom® - Scratch Creek
Shared: Adventure · Horror · Walking Simulator

Atomic Heart
Shared: Adventure · FPS · Action-Adventure

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

Metro Exodus
Shared: FPS · Horror · Atmospheric

DREDGE
Shared: Exploration · Adventure · Psychological Horror

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