APT. 407

First-person psychological horror investigating noises from a supposedly abandoned apartment

Jayhyeon Studio · Released May 27, 2025

Reviews: Mostly Positive; 74% of 92
Recent reviews: Not enough recent
Players: 0; daily peak, Oct 28, 2026
Steam Deck: Untested
Last update on Steam: 1 year ago; May 30, 2025
Minimum PC: GTX 1060; 8 GB RAM · 2 GB disk; Full requirements

What is APT. 407?

In this first-person psychological horror game, you explore an old Korean-style apartment building after moving beneath a supposedly abandoned unit. You search hallways, elevators, and homes for journals and clues to strange events. A first playthrough takes around 25–35 minutes, with two endings and an ending replay option.

For you if...

+you enjoy slow-building tension through silence, shadows, and subtle movement

Not for you if...

−you need to save progress and resume later

What players say

74% of 92 reviews are positive

Players praise the jump scares and story. Some reviewers object to what they describe as AI-generated content, and one reports lag and limited settings. The most recent reviewer criticizes the graphics and storytelling.

Screenshots and trailer

APT. 407 system requirements

Minimum: GTX 1060, 8 GB RAM, 2 GB of disk space.

As published by the developer.

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Minimum

OS: Windows 10 64-bit
Processor: Intel i5-4590
Graphics: NVIDIA GTX 1060
Memory: 8 GB RAM
Storage: 2 GB available space
DirectX: Version 11

Does APT. 407 have co-op or multiplayer?

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

Single-player

Does APT. 407 run on Steam Deck?

Untested Not yet tested by Valve on Steam Deck.

PC version details

DRM: None declared on Steam
Controller: Keyboard and mouse
Platforms: Windows
Steam features: Family Sharing
Languages: Full audio: Korean. Text only: English, Japanese, Simplified Chinese.

Does APT. 407 use AI-generated content?

Yes. The developers disclose AI-generated content on the game's Steam page:

This game uses AI-generated content for pre-rendered assets only. Some 3D models and dialogs were assisted by generative AI tools. No AI is used during gameplay or for live content generation.

The statement mentions: ArtText & translations

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