Obsession

Obsession

A standalone serial killer experience built as a Garry's Mod gamemode — no sandbox, no physics gun, no spawn menu. From the moment GMod boots you are in a dim, cramped apartment. A creepy cork board fills your screen: photo, red string, pins. Your obsession for the week.

What it is

You play a methodical killer. You pick your target, you stalk them, you close in, you execute. Third-person camera at all times. The apartment and the kill are the whole game.

The mash

Four games contribute to the experience. The gamemode reads their data if they are installed on your PC:

• Shadows of Doubt — procedural target generation (name, occupation, schedule, apartment layout seed)
• HITMAN World of Assassination — execution method inspiration (approach angle, tool tier, timing window)
• Manhunt — ambient execution audio (the hold-to-execute arc plays Manhunt-style tension)
• Kane & Lynch 2: Dog Days — handheld grain shader that kicks in as you close distance on the target

The gamemode ships with built-in fallback data for every element, so it runs fully even if none of the four companion games is installed.

Details

• Forced third-person from frame one
• Black fade-in wake-up sequence
• Obsession board with procedural target dossier
• Stalk / awareness loop (eye widget top-left)
• Hold-to-execute mechanic with Manhunt-style arc
• Cold, desaturated atmosphere — no bright colours
• Minimal HUD — only what you need
• Solo only (no multiplayer in this release)

Optional companion game data

After installing, you can run garrysmod\data\obsession_tools\obsession_bridge.ps1 from a PowerShell prompt to copy richer data from any companion games you own. The gamemode falls back gracefully when this is skipped.