Sinister Halloween

First-person horror through haunted houses on a Halloween night

Celeritas Games · Released Oct 31, 2019

Reviews: Very Positive; 83% of 138
Recent reviews: Not enough recent
Players: 0; daily peak, Oct 28, 2026
Steam Deck: Playable
Last update on Steam: 3 years ago; Oct 30, 2022
Minimum PC: GTX 1060; 4 GB RAM · 23 GB disk; Full requirements

What is Sinister Halloween?

A single-player, first-person horror adventure set in Mountain Peaks, northern Canada, where a Halloween outing with friends turns sinister. You trick-or-treat, enter themed haunted houses, and fight monsters across a level-based story campaign. Separate survival maps involve fighting enemies and reaching the end, and you can play with mouse and keyboard or in VR.

For you if...

+you enjoy exploring between encounters with classic horror monsters
+you like physically interacting with objects in VR

Not for you if...

−you want a cooperative or multiplayer horror game
−you prefer horror without shooting or fighting

What players say

83% of 138 reviews are positive

Players praise the Halloween scenery, themed locations, and campy horror tone. Common complaints include poor voice acting, awkward controls, bugs, and losing weapons or other equipment.

Screenshots and trailer

Sinister Halloween system requirements

Minimum: GTX 1060, 4 GB RAM, 23 GB of disk space.

As published by the developer.

Can my PC run Sinister Halloween?

Tell us your graphics card once and every game page will answer this for you.

Set up my PC →

Minimum

OS: Windows10
Processor: I5-4590/AMD FX 8350
Graphics: GTX 1060
Memory: 4 GB RAM
Storage: 23 GB available space
DirectX: Version 11

Does Sinister Halloween have co-op or multiplayer?

No: single-player only, no multiplayer modes declared.

Single-player

Does Sinister Halloween run on Steam Deck?

Playable Playable: it runs on Steam Deck with some adjustments.

Default controller config not fully functional
Sometimes shows mouse, keyboard or non-Deck controller icons
Some in-game text is small and may be hard to read
Default graphics settings perform well on Steam Deck

PC version details

DRM: None declared on Steam
Controller: Keyboard and mouse
Platforms: Windows
Achievements: 49
Steam features: Family Sharing, VR
Languages: Full audio: English.

Does Sinister Halloween use AI-generated content?

No AI-generated content is disclosed on the game's Steam page.

Self-reported by the developer under Steam rules: it covers AI content that ships in the game, not tools used to make it. Steam page checked on Oct 27, 2026. How to filter AI games on Steam