Games like Death Again
Games like Death Again include Poppy Playtime, Phasmophobia, Garten of Banban, The Outlast Trials, and Resident Evil 7 Biohazard. We matched them by the tags players give Death Again on Steam (Horror, Puzzle, Shooter, PvE, and 3D): closest matches first, and among equally close ones the better-known games.

Poppy Playtime
Shared: Horror · Puzzle · First-Person

Phasmophobia
Shared: Horror · Psychological Horror · First-Person

Garten of Banban
Shared: Horror · Puzzle · First-Person

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

Resident Evil 7 Biohazard
Shared: Horror · First-Person · Psychological Horror

Lethal Company
Shared: Horror · First-Person · PvE

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

Inside the Backrooms
Shared: Horror · Puzzle · Psychological Horror

In Sound Mind
Shared: Horror · Puzzle · Psychological Horror

Left 4 Dead 2
Shared: Shooter · Horror · Action

Killing Floor 3
Shared: PvE · Shooter · Horror

Zort
Shared: Horror · PvE · First-Person

MiSide
Shared: Horror · Psychological Horror · First-Person

Escape the Backrooms
Shared: Horror · Psychological Horror · First-Person

Garten of Banban 2
Shared: Horror · Puzzle · First-Person

The Callisto Protocol™
Shared: Horror · Shooter · PvE

Ready or Not
Shared: Shooter · Horror · First-Person

DOOM
Shared: Shooter · Action · First-Person

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

Crisol: Theater of Idols
Shared: Horror · Shooter · First-Person

CULTIC
Shared: Shooter · Horror · First-Person

Garten of Banban 3
Shared: Horror · Puzzle · First-Person

The Exit 8
Shared: Puzzle · Horror · First-Person

Gorilla Tag
Shared: Horror · First-Person · Psychological Horror