Games like Open or Die
Games like Open or Die include CloverPit, Buckshot Roulette, Outlast, Hades, and No, I'm not a Human. We matched them by the tags players give Open or Die on Steam (Action, Roguelike, Roguelite, 3D, and First-Person): closest matches first, and among equally close ones the better-known games.

CloverPit
Shared: Roguelike · Roguelite · First-Person

Buckshot Roulette
Shared: First-Person · Dark · 3D

Outlast
Shared: First-Person · Atmospheric · Action

Hades
Shared: Roguelite · Action · Roguelike

No, I'm not a Human
Shared: Psychological Horror · Atmospheric · Horror

Hades II
Shared: Action · Roguelike · Roguelite

Megabonk
Shared: Roguelike · Roguelite · Action

Ready or Not
Shared: Realistic · Action · First-Person

Garten of Banban
Shared: First-Person · 3D · Psychological Horror

Outlast 2
Shared: First-Person · Psychological Horror · Atmospheric

Inscryption
Shared: Roguelike · Roguelite · Dark

Gunfire Reborn
Shared: Roguelike · Roguelite · Action

Poppy Playtime
Shared: First-Person · Dark · Horror

MiSide
Shared: First-Person · 3D · Psychological Horror

Resident Evil Village
Shared: Action · First-Person · Horror

Resident Evil Requiem
Shared: Action · First-Person · Horror

The Outlast Trials
Shared: First-Person · Action · Horror

Skul: The Hero Slayer
Shared: Action · Roguelike · Roguelite

Deadzone: Rogue
Shared: Roguelike · Roguelite · First-Person

KLETKA
Shared: Action · First-Person · Roguelike

Mouthwashing
Shared: Atmospheric · Psychological Horror · Horror

SOMA
Shared: Atmospheric · Psychological Horror · Dark

Hellblade: Senua's Sacrifice
Shared: Atmospheric · Psychological · Dark

Resident Evil 7 Biohazard
Shared: First-Person · Action · Atmospheric