Ad Infernum

Survival horror where declining sanity triggers unpredictable hallucinations

Glass Knuckle Games · Released Feb 29, 2024

As of Oct 28, 2026: -50% right now, $4.99

Reviews: Very Positive; 96% of 67
Recent reviews: Not enough recent
Players: 0; daily peak, Oct 28, 2026
Steam Deck: Verified
Last update on Steam: 1 year ago; Oct 5, 2025
Minimum PC: HD 4000; 1 GB RAM · 4 GB disk; Full requirements

What is Ad Infernum?

A single-player survival horror game set at an abandoned desert gas station after a car crash, where you investigate a vanished cult with help from a voice on the radio. You scavenge supplies, transmute materials into items, upgrade guns and melee weapons, and sneak, fight, or climb past threats.

For you if...

+you like finding alternate routes and improvising puzzle solutions
+you enjoy managing resources during cautious exploration

Not for you if...

−you want a lengthy, story-driven campaign
−you prefer horror without fighting or evading enemies

What players say

96% of 67 reviews are positive

Players praise the compact design and replay value, while some criticize the writing and rough presentation. One reviewer reports startup crashes on Linux; a more recent reviewer reports low frame rates and story-related objects failing to render at minimum settings.

Screenshots and trailer

Ad Infernum system requirements

Minimum: HD 4000, 1 GB RAM, 4 GB of disk space.

As published by the developer.

Can my PC run Ad Infernum?

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Minimum

OS: Windows 7
Processor: Intel Core 2 Duo
Graphics: Intel HD 4000
Memory: 1 GB RAM
Storage: 4 GB available space
DirectX: Version 11

Does Ad Infernum have co-op or multiplayer?

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

Single-player

Does Ad Infernum run on Steam Deck?

Verified Yes, Verified by Valve: it works on Steam Deck out of the box.

All functionality is accessible with the default controller configuration
Shows Steam Deck controller icons
In-game text is legible on Steam Deck
Default graphics settings perform well on Steam Deck

PC version details

DRM: None declared on Steam
Controller: Full controller support
Platforms: Windows, macOS, Linux
Achievements: 17
Steam features: Cloud saves, Family Sharing
Languages: Full audio: English.

Does Ad Infernum 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 28, 2026. How to filter AI games on Steam