One seek bar.
Every screen. Every device.

Play a video on your 4K monitor. Scene audio to your speakers. Stim audio to your USB dongle. A prostate channel to a second dongle. Haptics to whatever you have plugged in. All driven by the same pack, all synced to the same timestamp.

Download for Windows Download for macOS Download for Linux

Windows installer sets up the .forge double-click association. Prefer no install? Windows portable (.zip). macOS & Linux are portable — unzip and run.

Latest release · Free · No Python required · Open source

Pre-release software. Provided as-is, without warranty of any kind. Use at your own risk.

See it

Set up your screens and devices once — then play.

ForgePlayer Setup tab — assign audio devices and monitors — Setup — route each role to a device and monitor

ForgePlayer playing a scene across screens — Play — one timeline drives every screen and output

What it does

One pack drops in. Everything plays together.

Synchronized multi-screen video

libmpv pipeline with shared decoder and one render context per screen — every monitor stays frame-locked through play, seek, chapter jumps, and loops.

Per-port device routing

Scene audio to your speakers, stim audio to a USB dongle, a prostate channel to a second dongle, haptics to whatever you have. Separate volume per port.

Dual-port stim with multi-channel

Haptic 1 carries the main stim. Haptic 2 plays a prostate-specific track when the pack provides one — frame-perfect mirror of Haptic 1 otherwise.

Sound or live funscript synth

Pick whether ForgePlayer prefers pre-rendered stim audio (mp3) or synthesizes a funscript live via the embedded restim engine. Falls back gracefully when only one is available.

Clean stim audio

Multi-block envelope ramping, post-seek settle hold, and WASAPI exclusive mode on Windows keep the stim stream pop-free across play, pause, seek, and stop.

Drop a folder. Hit play.

Scene packs from FunscriptForge or ForgeAssembler load directly. Library auto-discovers MP4 + funscript + prostate-audio variants. Local-only — no cloud, no account, no telemetry.

How it works

Four steps from cold start to synced playback.

Pick devices in Setup

Wire your scene audio output, Haptic 1, and (optionally) Haptic 2 dongle. Calibrate each port with a built-in test tone.

Scan a library folder

Point Library at any folder of scene packs. ForgePlayer discovers video, funscripts, stim audio, and prostate variants automatically.

Click a scene

Single-click activates a scene; the Live tab fills with the timeline, per-port routing, and the source labels for each haptic channel.

Play

One seek bar drives every screen and every device. Scrub freely — synth, audio file, and video all stay in sync.

System requirements

Standalone app — no Python, no mpv install, no dependencies.

	Minimum	Recommended
OS	Windows 10 (64-bit) · macOS 10.15 Catalina · Linux x86-64	Windows 10/11 · macOS 12+ · Ubuntu 24.04 LTS
Display	1920 × 1080	4K + a second monitor (the multi-screen story shines)
Audio	Built-in output for scene audio	One USB audio dongle for stim — two if you want a prostate channel
RAM	8 GB	16 GB or more
GPU	Any GPU with OpenGL 3.3	Discrete GPU for HDR pass-through and high-bitrate scaling
libmpv	Bundled — no install required
Python	Not required — standalone installer

Works with these e-stim boxes

Each stim box runs from its own USB audio dongle (separate from your speakers). Haptic 1 carries the three-phase / stereostim signal; Haptic 2 an optional prostate signal. Match the synthesis mode to your box.

Three-phase / stereostim (Pulse-based mode): The Tingler StimKit I · EstimHero · ZC95 MKII
Classic (Continuous mode): MK‑312BT · 2B

Not yet supported: Coyote (DG-Lab) — Bluetooth devices haven't been tested yet.

More from Liquid Releasing

The rest of the family — what feeds ForgePlayer, and what it pairs with.

FunscriptForge

Structure-aware funscript post-processor. Builds the multi-channel scene packs ForgePlayer plays — main funscript, alpha-prostate, pre-rendered stim audio, and the rest.

Visit FunscriptForge.com →

ForgeAssembler

Concatenate many FunscriptForge clips into one long combined output — MP4 with chapter markers, every funscript channel in lockstep, fade-to-black joiners. Build longer ForgePlayer-ready packs from short clips.

Visit forgeassembler.app →

ForgeYT

Paste a YouTube URL, get the audio file on your disk. MP3, M4A, Opus, or WAV with embedded title and cover art. Useful for grabbing music beds for ForgeAssembler or reference audio for FunscriptForge.

Windows macOS Linux

Ready to play?

Run the Windows installer, or grab the portable build for macOS & Linux — unzip and run.