Night City Haptics

Cyberpunk 2077 for any Intiface-compatible toy (18+). Hits thud, low health beats like a heart, explosions and crashes shake, level-ups land, and romance and joytoy scenes get their own tracks. 47 interactions, each tuned live on a local control page. The busy ones (gunfire, footsteps, the engine) start off, so the big moments stand out.

You need

• Cyberpunk 2077 on Windows or Linux / SteamOS, with Cyber Engine Tweaks.
• A toy with Buttplug.io Support in the IoST Index.

Intiface itself is optional: the app downloads the official Intiface Engine for you. If Intiface Central is already running, it uses that.

Install

1. Extract NightCityHaptics-0.5.1.zip into the game folder (the one with bin in it).

2. Open bin/x64/plugins/cyber_engine_tweaks/mods/nightCityHaptics/companion/ and run start.sh (Linux) or start.cmd (Windows). The control page opens in your browser.

3. Click Download next to Intiface at the top of the page. The engine starts and scans for 30 seconds, so turn your toy on. It shows up under Devices.

4. In Steam, open Cyberpunk 2077 → Properties → Launch Options and enter the line for your system. From then on the app starts with the game and closes with it.

   Linux / SteamOS:

   /bin/sh "/home/deck/.local/share/Steam/steamapps/common/Cyberpunk 2077/nch-steam-launch" -- %command%

   Windows:

   "C:\Program Files (x86)\Steam\steamapps\common\Cyberpunk 2077\bin\x64\plugins\cyber_engine_tweaks\mods\nightCityHaptics\companion\night-city-haptics.exe" --steam -- %command%

   Change the path if your game is elsewhere (Steam → Manage → Browse local files). Already have launch options? Other wrappers go after --, game flags after %command%, and on Linux VAR=value settings go first.

The page stays at http://127.0.0.1:19870/ while the app runs. Feedback plays only in live gameplay, not in menus, loading screens, photo mode or the CET overlay.

Using it

• Interactions: each has a switch, a feel, a strength and Try, which previews it without the game. Whole groups switch on and off together.
• Max strength caps everything (default 70%). On/Off stops it all. Pause is in the CET overlay; Pause and Test buzz can be bound in CET's Bindings.
• Devices: strength, battery and a button per output. Test sends a short pulse.
• Settings: Intiface address (default ws://127.0.0.1:12345), engine auto-start and Reset interactions (keeps device settings).
• Quit stops your toys and the engine the app started.

Output	Behaviour
Vibrate, Light	follow the mix
Rotate	follows the mix; a sudden hit reverses the spin
Thrust	follows the mix
Stroke	faster and longer as the mix rises
Squeeze	eases toward the mix (off by default)
Heat	warms with sustained feedback (off by default)

Scenes

• Romance: Judy, Kerry, Panam, River and Meredith Stout each have a track. Judy, Kerry and Panam have shorter tracks for the censored cut.
• Joytoys: Jig-Jig Street and Heywood, synced to each clip.
• Tracks fade out when the scene ends. Loading a save after a romance doesn't replay it.

All 47 interactions and their defaults

Strength is a share of Max strength.

Group	Interaction	Default
Combat	Gunfire	45%, Kick, off
	Getting hit	90%, Thud
	Low health	70%, Heartbeat
	Explosions	100%, Shockwave
	Melee swings	45%, Kick, off
	Enemy down	45%, Double tap, off
	Grabs & takedowns	70%, Thud
	Combat starts	50%, Alarm
	Charging up	40%, Rumble, off
	Reloads	20%, Tap, off
	Weapon overheat	60%, Rumble burst
	Blocks & parries	45%, Kick, off
	Grenade throws	30%, Ramp, off
	Hits landed	20%, Tap, off
Status effects	Burning	50%, Rumble
	Electrocuted & EMP	55%, Flutter
	Poisoned & bleeding	30%, Throb, off
	Knocked down & stunned	85%, Thud
	Blinded	60%, Rumble burst
	Relic glitches	65%, Glitch
	Being hacked	50%, Static
Cyberware	Sandevistan & Kerenzikov	45%, Wave
	Berserk	65%, Build
	Quickhack upload	25%, Flutter, off
	Optical camo	20%, Wave, off
Movement	Sprinting	20%, Footsteps, off
	Jumps	30%, Tap, off
	Landings	55%, Thud, off
	Dodges & slides	35%, Tap, off
	Climbs & vaults	30%, Kick, off
	Out of stamina	35%, Ripple, off
	Running out of air	50%, Heartbeat
Driving	Engine	25%, Rumble, off
	Crashes	100%, Shockwave
	Drifting	45%, Rumble, off
	Gear shifts	20%, Tap, off
Rewards & world	Police heat	60%, Alarm
	Level up	85%, Fanfare
	Quest completed	70%, Fanfare
	Eddies received	30%, Tap, off
	Healing	35%, Swell, off
	Loot pickups	15%, Tap, off
	Incoming calls	40%, Phone ring
Scenes	Romance scenes	80%, Follow the scene
	Joytoys	80%, Follow the scene
	Braindances	30%, Wave, off
	Other mods	80%, Swell

Troubleshooting

• Toy not found: close its phone app and press Scan. On Linux, turn Bluetooth on.
• Permission denied (Linux): chmod +x start.sh night-city-haptics in the companion folder.
• Logs: %LOCALAPPDATA%\NightCityHaptics\ (Windows), ~/.local/share/night-city-haptics/ (Linux).

No telemetry, no account. The page only listens on 127.0.0.1, and the only download is the Intiface Engine from Intiface's GitHub releases.

For mod authors

GetMod("nightCityHaptics").Pulse(0.8, 2)   -- strength 0–1, optional seconds

Plays through the Other mods interaction.

Development

Builds both companions and the ZIP from Linux (Rust, clang/lld, Python 3):

rustup target add x86_64-unknown-linux-gnu x86_64-pc-windows-msvc
cargo install cargo-xwin --locked
python3 tools/build_native.py
python3 tools/build.py --output-dir .build/candidate

Tests (LuaJIT, and websockets>=15,<17 for the Python tools):

luajit tests/cet_harness.lua
cargo test --manifest-path rust/Cargo.toml
python3 -m unittest discover -s tests
python3 tools/e2e_intiface.py      # Linux: real Intiface Engine + simulated toy

Built on Buttplug / Intiface by Nonpolynomial.