
S.I.N.
A downloadable game for Windows
You were right to be afraid of the dark.
S.I.N. is a classified agency deployed when criminal incidents cross into supernatural containment, assuming authority before the public ever learns what happened.
Breach carefully, identify threats, recover evidence, and remember that a dangerous host may still be a victim.

FEATURES
Take Command of S.I.N.
Lead your squad through the dark. equip yourself carefully, and prepare to bring order to chaos. Secure cursed evidence, expel evil, and preserve human life. Stack on doors, hold angles, issue commands, breach rooms, and react fast when suspects surrender, flee, fight, or reveal something worse.
Rules of Engagement Matter
Use of force has consequences. Suspects can be arrested. Hostages can be saved or lost. Possessed hosts may still be victims. A bad shot, a rushed breach, or an ignored warning can change the outcome of the mission.
Tactical Horror Gameplay
S.I.N. blends SWAT style tactics with supernatural threat response. NPCs react through fear, stress, compliance, aggression, and possession. Some can be talked down. Some will fight back. Some are only pretending to be human.
Evidence Drives the Story
Search each mission for evidence that reveals motive, ritual activity, hidden connections, and Psychic Division findings.
Uncover the conspiracy.
Uncover the truth
| Published | 23 hours ago |
| Status | Released |
| Platforms | Windows |
| Rating | Rated 5.0 out of 5 stars (1 total ratings) |
| Author | MCSTEEG |
| Genre | Shooter, Simulation |
| Made with | Unity |
| Tags | 3D, Dark, FPS, Horror, No AI, Psychological Horror, Scary, Singleplayer, Tactical |
| Average session | About a half-hour |
| Languages | English |
| Inputs | Keyboard, Mouse |
| Accessibility | Subtitles, Interactive tutorial |
| Content | No generative AI was used |
Download
Install instructions
Thank you for downloading! This is an EARLY playtest build so I would very much appreciate feedback! ALSO if windows defender yells at you, you can select "Run Anyway" and it should be fine.
I SWEAR ITS SAFE!!!
Thanks again! Hope you enjoy.
~McSteeg
Development log
- SIN Patch 0.2.119 hours ago
- S.I.N. (Supernatural Intervention & Neutralization) Public Alpha Launch23 hours ago







