Games like Path to Mnemosyne
Games like Path to Mnemosyne include GRIS, Fran Bow, Detention, Little Nightmares, and Hellblade: Senua's Sacrifice. We matched them by the tags players give Path to Mnemosyne on Steam (Adventure, Indie, Puzzle, Female Protagonist, and Horror): closest matches first, and among equally close ones the better-known games.

GRIS
Shared: Indie · Adventure · Female Protagonist

Fran Bow
Shared: Puzzle · Adventure · Indie

Detention
Shared: Indie · Horror · Puzzle

Little Nightmares
Shared: Adventure · Horror · Atmospheric

Hellblade: Senua's Sacrifice
Shared: Female Protagonist · Atmospheric · Adventure

Little Nightmares II
Shared: Adventure · Horror · Puzzle

Tales of the Black Forest
Shared: Indie · Adventure · Horror

Firework
Shared: Indie · Puzzle · Horror

Rusty Lake Paradise
Shared: Puzzle · Indie · Adventure

Sally Face - Episode One
Shared: Indie · Adventure · Horror

LIMBO
Shared: Indie · Puzzle · Adventure

Samsara Room
Shared: Indie · Adventure · Puzzle

The Cat Lady
Shared: Adventure · Horror · Indie

Stray
Shared: Adventure · Atmospheric · Puzzle

Poppy Playtime
Shared: Horror · Puzzle · Indie

Layers of Fear (2016)
Shared: Horror · Atmospheric · Indie

DreadOut
Shared: Indie · Adventure · Horror

Chants of Sennaar
Shared: Adventure · Puzzle · Indie

Servant of the Lake
Shared: Adventure · Puzzle · Indie

The Room
Shared: Puzzle · Adventure · Indie

The Room Two
Shared: Puzzle · Adventure · Indie

The Medium
Shared: Adventure · Female Protagonist · Horror

What Remains of Edith Finch
Shared: Adventure · Atmospheric · Indie

Neva
Shared: Adventure · Indie · Atmospheric