Games like Ancient Guardian
Games like Ancient Guardian include Notes of Soul, CARRION, The Beast Inside, Bendy and the Dark Revival, and The Forest. We matched them by the tags players give Ancient Guardian on Steam (Action, Adventure, Indie, Horror, and Procedural Generation): closest matches first, and among equally close ones the better-known games.

Notes of Soul
Shared: Action · Horror · Adventure

CARRION
Shared: Action · Horror · Indie

The Beast Inside
Shared: Adventure · Horror · Action

Bendy and the Dark Revival
Shared: Action · Horror · Adventure

The Forest
Shared: Horror · Adventure · Action

We Happy Few
Shared: Adventure · Action · Indie

Content Warning
Shared: Horror · Procedural Generation · Action

Daymare: 1998
Shared: Action · Adventure · Horror

The Dark Occult
Shared: Action · Adventure · Horror

Lucius
Shared: Adventure · Horror · Indie

Remothered: Tormented Fathers
Shared: Action · Adventure · Horror

Mists of Aiden
Shared: Adventure · Horror · Indie

Unforgiving - A Northern Hymn
Shared: Adventure · Indie · Horror

Maid of Sker
Shared: Adventure · Action · Horror

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

Hotline Miami
Shared: Action · Indie · Violent

Paper Dolls: Original /
Shared: Adventure · Action · Horror

The Coma 2: Vicious Sisters
Shared: Adventure · Horror · Indie

G2 Fighter / 基因特工
Shared: Adventure · Action · Indie

Lethal Company
Shared: Horror · Indie · Procedural Generation

Spooky's Jump Scare Mansion: HD Renovation
Shared: Adventure · Indie · Horror

Apsulov: End of Gods
Shared: Adventure · Horror · Action

Survival Zombies The Inverted Evolution
Shared: Action · Adventure · Indie

Backrooms: Escape Together
Shared: Horror · Early Access · Adventure