Day 31 – Occult Horror Shooter with a Countdown Curse

10/31/2026, 2:11:21 AM (JST)

Release date: 10/30/2026

Tags: #horror #survival-horror #psychological-horror #atmospheric #action #shooter #fps #first-person

Reference prices

Japan

¥ 1,350 (JPY)

Steam JP

$9.99 (USD)

Steam Global

Check the requirements against my PC (item by item: confirmed / short / unknown. Nothing leaves your device)

Live Store Snapshot

Body text may reflect the state at publication time. For the latest sale, price, and review changes, prioritize the live price panel, review panel, and the Steam store listing.

Japan Price: ¥ 1,350
Global Price: $9.99
Price in Your Region: ¥1,350Prices as Steam lists them per country. What you are actually charged depends on your Steam account settings.Regional prices checked: 14 Nov 2026
Sale Status: Regular pricing
Price Checked At: 11/7/2026, 2:11:38 AM (JST)

Key highlight

Day 31 is an occult-horror shooter where a curse counts down inside you. Fight to generate nerve, survive the waves, and bargain with the mysterious Vessel in a derelict hospital.

Who this is for

If you crave a horror shooter that punishes passivity and rewards aggression, Day 31 offers a tense co-op experience with a supernatural twist.

Hardware Guide for Comfortable Play

Based on the game's recommended specs, showing a comfortable performance target and example parts (PassMark reference)

CPU

Game's recommended spec

Intel Core i7-9700K / AMD Ryzen 7 3700X

Comfortable play target

29,436 pts(~130% above spec of 22,643 pts)

Parts near this range

AMD Ryzen 7 8745HS29,512 pts AMD Ryzen AI 7 PRO 450G29,358 pts AMD Ryzen 7 H 25529,595 pts

GPU

Game's recommended spec

NVIDIA GeForce RTX 3060 / AMD Radeon RX 6600 XT

Comfortable play target

21,935 pts(~130% above spec of 16,873 pts)

Parts near this range

Radeon RX 680022,040 pts GeForce RTX 307022,058 pts GeForce RTX 5060 Ti 8GB21,780 pts

* Scores are reference values. Actual performance varies by in-game settings, resolution, and system environment.

Details

Overview

Day 31 is an occult-horror shooter from developer and publisher SizilStank, now available on Steam in Early Access. Set in a derelict hospital and its surrounding darkness, the game drops you into a world where the dead have risen after something buried beneath Harrow was released.

You've survived thirty days, but a bite from a creature with wrong teeth has left a mark in your blood—a curse that counts down until you stop being yourself. This isn't a virus; it's a supernatural deadline.

Highlights

Curse-Driven Timer: Every run begins with the clock already ticking. The mark in your blood drains as you hide or freeze, but fighting and killing claw back time and keep you human.
Nerve as Resource: Instead of medicine, your survival hinges on nerve—raw willpower generated through combat. Standing still is how you turn.
Mysterious Ally: Between waves, a character named Vessel appears, offering deals. His role and the nature of the bargain remain part of the game's mystery.
Early Access: The game is currently in Early Access, with the developer actively shaping its content.
Multiplayer Options: Supports single-player, multi-player, co-op, and shared/split-screen co-op, so you can face the curse alone or with others.

Who It's For

Day 31 is built for players who enjoy survival horror with a shooter's pace. If you like atmospheric dread, body horror, and a resource system that punishes passivity, this will appeal.

The gore and disturbing imagery are frequent and intense, so it's not for the squeamish. Co-op fans will find a reason to team up, while solo players can test their nerve alone.

Game Info

Developer/Publisher: SizilStank
Genre: Action, Indie, Early Access (with horror, shooter, and FPS elements)
Release: October 30, 2026
Platform: Steam (PC)
Modes: Single-player, Multi-player, Co-op, Shared/Split Screen Co-op
Content: Frequent violence, gore, dismemberment, and disturbing medical imagery; strong language in some dialogue
Language: English (full audio support)