Games like Lunatix
Games like Lunatix include Poppy Playtime, Escape the Backrooms, In Sound Mind, Inside the Backrooms, and Lethal Company. We matched them by the tags players give Lunatix on Steam (Horror, Psychological Horror, First-Person, Action, and Mystery): closest matches first, and among equally close ones the better-known games.

Poppy Playtime
Shared: Horror · First-Person · Psychological Horror

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

In Sound Mind
Shared: Horror · Psychological Horror · Action

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

Lethal Company
Shared: Horror · First-Person · Psychological Horror

Buckshot Roulette
Shared: Horror · First-Person · Psychological

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

Phasmophobia
Shared: Horror · Psychological Horror · First-Person

Amnesia: A Machine For Pigs
Shared: Horror · First-Person · Psychological Horror

SILENT HILL: Townfall
Shared: Horror · Psychological Horror · Action

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

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

SOMA
Shared: Horror · Psychological Horror · First-Person

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

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

Total Chaos
Shared: Psychological Horror · Horror · Action

MiSide
Shared: Psychological Horror · Horror · First-Person

The Exit 8
Shared: Horror · Psychological Horror · Exploration

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

Atomic Heart
Shared: Action · Horror · FPS

Pacify
Shared: Horror · Psychological Horror · First-Person

Outlast
Shared: Horror · First-Person · Psychological Horror

No, I'm not a Human
Shared: Horror · Psychological Horror · First-Person

Outer Wilds
Shared: Mystery · Exploration · Horror