Games like The Killing Stone
Games like The Killing Stone include Inscryption, Library Of Ruina, Slay the Spire, Buckshot Roulette, and Balatro. We matched them by the tags players give The Killing Stone on Steam (Card Battler, Card Game, Strategy, Story Rich, and Horror): closest matches first, and among equally close ones the better-known games.

Inscryption
Shared: Card Battler · Card Game · Story Rich

Library Of Ruina
Shared: Card Game · Story Rich · Strategy

Slay the Spire
Shared: Card Game · Card Battler · Strategy

Buckshot Roulette
Shared: Dark · Horror · Strategy

Balatro
Shared: Card Game · Strategy · Deckbuilding

Slay the Spire 2
Shared: Card Game · Strategy · Card Battler

No, I'm not a Human
Shared: Horror · Story Rich · Dark

Mouthwashing
Shared: Story Rich · Horror · Dark

SOMA
Shared: Horror · Story Rich · Dark

DICEOMANCER
Shared: Card Game · Card Battler · Strategy

Vampire Crawlers: The Turbo Wildcard from Vampire Survivors
Shared: Card Battler · Strategy · Card Game

Griftlands
Shared: Card Battler · Card Game · Story Rich

MiSide
Shared: Story Rich · Horror · First-Person

Sally Face - Episode One
Shared: Story Rich · Horror · Dark

Ultimate Custom Night
Shared: Horror · Strategy · Dark

Bendy and the Ink Machine
Shared: Horror · Dark · First-Person

Five Nights at Freddy's 2
Shared: Horror · Dark · Strategy

Five Nights at Freddy's: Sister Location
Shared: Horror · Dark · Strategy

Five Nights at Freddy's 4
Shared: Horror · Dark · Strategy

INSIDE
Shared: Horror · Story Rich · Dark

Hellblade: Senua's Sacrifice
Shared: Story Rich · Dark · Horror

Little Nightmares
Shared: Horror · Dark · Story Rich

Layers of Fear (2016)
Shared: Horror · Story Rich · Atmospheric

CloverPit
Shared: Strategy · Horror · First-Person