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SPECIFICTION
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LuppetX

luppet.jp

Free plan WindowsAPI
Visit luppet.jp
Spec score 9.0 #2 of 25 in VTuber Software

What it is

LuppetX is a Windows application that animates 3D VTuber characters using webcam and Leap Motion tracking. It focuses on upper-body expression, including eye and arm movement, and supports hand tracking and lip-sync. The software animates VRM files, including VRM 1.0, and attached accessories such as ribbons, cat ears, necklaces, or microphones can follow the character. Tracked motion is sent in real time to other applications through the VMC Protocol, for uses such as OBS streaming, avatar meetings, and presentations. The stated requirements are Windows 10 64-bit, a GTX 970 or better, an Intel Core i5-4460 equivalent or better, 8 GB RAM, an Ultraleap device, and a webcam. The maker describes a setup without prior calibration: wear Leap Motion around the neck and point a webcam at yourself. Version 1.1.0 works offline and needs no account or license purchase. That version is a free download; Personal costs 6600.00 JPY once, and Enterprise costs 99800.00 JPY once. Support ended October 4, 2026, and the maker says it is dissolving.

Spec sheet

What it does
LuppetX is VTuber tracking software that animates VRM 3D characters using a webcam and Leap Motion.Read 15 Oct 2026 · negipoyoc.booth.pm
Purpose
LuppetX tracks 3D VTuber characters using a webcam and Leap Motion.Read 7 Oct 2026 · luppet.jp
Headquarters
The company lists its address in Shinagawa, Tokyo, Japan.Read 15 Oct 2026 · luppet-tech.co.jp
Founded
The company was established on November 1, 2019.Read 15 Oct 2026 · luppet-tech.co.jp
Company
The maker identifies Luppet Technologies, Inc. as the provider and says the company is dissolving.Read 7 Oct 2026 · doc.luppet.jp
Accessories
Accessories can follow avatar bones and be attached to locations including the head, neck and arms.Read 15 Oct 2026 · luppet.jp
Background expression control
Expression shortcuts continue to work while LuppetX is minimized or another window is focused.Read 15 Oct 2026 · doc.luppet.jp
Booth distribution
The BOOTH listing provides a free 82.9 MB installer ZIP and a separate documentation ZIP for version 1.1.0.Read 15 Oct 2026 · negipoyoc.booth.pm
Company legal name
The maker identifies itself as Luppet Technologies Inc., legally 株式会社ラペットテクノロジーズ.Read 15 Oct 2026 · luppet-tech.co.jp
Company size
The company page lists two people including officers and contractors.Read 15 Oct 2026 · luppet-tech.co.jp
Documentation and support
The documentation site includes setup, usage, troubleshooting, FAQs, release notes, known issues and contact forms.Read 15 Oct 2026 · doc.luppet.jp
Ease of setup
The maker says users can wear the Leap Motion around the neck and point a webcam at themselves without prior calibration.Read 7 Oct 2026 · luppet.jp
Expression keys
Users can trigger VRM expressions such as happy and angry with configurable keyboard shortcuts.Read 15 Oct 2026 · doc.luppet.jp
External motion
Tracked motion can be sent to other applications in real time through the VMC Protocol.Read 15 Oct 2026 · doc.luppet.jp
Founder and representative
The listed representative director is Takumi Negishi, who began offering Luppet as an individual business in February 2019.Read 15 Oct 2026 · luppet-tech.co.jp
Future maintenance limit
After support ended, no bug fixes, updates or compatibility work for future operating systems, software or devices was promised.Read 15 Oct 2026 · negipoyoc.booth.pm
Hardware requirements
The documentation lists Windows 10 64-bit, a GTX 970 or better, an Intel Core i5-4460 equivalent or better, 8 GB RAM, an Ultraleap device, and a webcam as requirements.Read 7 Oct 2026 · doc.luppet.jp
Installer
LuppetX is distributed as a Windows installer executable and can be removed through Windows Control Panel.Read 15 Oct 2026 · doc.luppet.jp
Known hand-tracking issue
The older V4 LeapMotion software released in 2020 is not supported for hand tracking.Read 15 Oct 2026 · doc.luppet.jp
Known webcam issue
The documentation reports that Ultraleap camera changes can conflict with a webcam and stop camera tracking.Read 15 Oct 2026 · doc.luppet.jp
Legacy versions
Versions 1.0.9p and earlier require server-based login and license verification and stop working after the servers are shut down.Read 7 Oct 2026 · doc.luppet.jp
Licence delivery delay
The BOOTH licence listing warns that redeem-code issuance can take up to 12 hours and discount codes cannot be used.Read 15 Oct 2026 · booth.pm
Minimum CPU and memory
The minimum processor is equivalent to an Intel Core i5-4460 and the minimum memory is 8 GB RAM.Read 15 Oct 2026 · doc.luppet.jp
Minimum GPU
The minimum graphics requirement is an NVIDIA GeForce GTX 970 or better.Read 15 Oct 2026 · doc.luppet.jp
Model support
It animates VRM files and supports VRM 1.0.Read 7 Oct 2026 · luppet.jp
Motion integration
It sends tracked motion in real time to external applications using the VMC Protocol.Read 7 Oct 2026 · doc.luppet.jp
Notable news
The free version was released on August 23, 2026 as part of the company-dissolution transition.Read 15 Oct 2026 · doc.luppet.jp
Offline operation
Version 1.1.0 was offline-processed and does not require a server connection, account registration, or license purchase.Read 7 Oct 2026 · doc.luppet.jp
Offline version
Version 1.1.0 removes login and server-dependent processing so the application can run without a server connection.Read 15 Oct 2026 · doc.luppet.jp
Perfect Sync
Perfect Sync maps all 52 iOS ARKit facial parameters to avatar blend shapes for richer expressions.Read 15 Oct 2026 · doc.luppet.jp
Perfect Sync limitation
LuppetX currently supports Perfect Sync only when facial tracking comes from iFacialMocap.Read 15 Oct 2026 · doc.luppet.jp
Refund policy
The maker states that previously purchased licences are not refundable after the free release.Read 15 Oct 2026 · doc.luppet.jp
Streaming and meetings
The maker describes uses including OBS chat or game streaming, avatar remote meetings, and presentations.Read 7 Oct 2026 · luppet.jp
Support end
The maker ended LuppetX support on October 4, 2026 because it planned to dissolve the operating company.Read 15 Oct 2026 · doc.luppet.jp
Support status
Support ended October 4, 2026; the maker says it will no longer answer inquiries or provide bug fixes or updates.Read 7 Oct 2026 · doc.luppet.jp
Tracking focus
It specializes in upper-body expression, including natural eye and arm movement.Read 7 Oct 2026 · luppet.jp
Tracking-device compatibility
The required Ultraleap device may be LeapMotion, Stereo IR170 or 3Di.Read 15 Oct 2026 · doc.luppet.jp
Two-device setup
The intended basic setup uses only a webcam and an Ultraleap device such as Leap Motion.Read 15 Oct 2026 · luppet.jp
Upper-body tracking
The product focuses on expressive upper-body movement for streaming and similar avatar uses.Read 15 Oct 2026 · luppet.jp
VMC extensibility
The VMC Protocol is publicly implementable and supports receivers, senders and add-ons for engines such as Unity, Unreal, Blender and Godot.Read 15 Oct 2026 · protocol.vmc.info
VMC licence
The VMC Protocol specification is released under the MIT licence.Read 15 Oct 2026 · protocol.vmc.info
VRM support
LuppetX supports VRM models, including the VRM 1.0 standard.Read 15 Oct 2026 · luppet.jp
VRoom integration
The documentation demonstrates receiving LuppetX motion in the VRoom application.Read 15 Oct 2026 · doc.luppet.jp
Webcam guidance
The documentation says ordinary webcams should work, while 60 fps and wider field of view can improve tracking.Read 15 Oct 2026 · doc.luppet.jp
Windows requirement
The documented minimum operating system is 64-bit Windows 10.Read 15 Oct 2026 · doc.luppet.jp

Plans and prices

LuppetX ver. 1.1.0 Free Free download; no account registration or license purchase required Same functionality as previous version · Commercial use permitted · Support ended October 4, 2026 Read 7 Oct 2026 · doc.luppet.jp
LuppetX Ver. 1.1.0 Free Free individual and business use · commercial use allowed · no account or license required · same functionality as 1.0.9p Read 15 Oct 2026 · doc.luppet.jp
LuppetX Personal ¥6,600, paid once one-time purchase individual license · watermark removed · all features Read 15 Oct 2026 · luppet.jp
LuppetX Enterprise ¥99,800, paid once one-time purchase corporate license · watermark removed · all features · corporate use Read 15 Oct 2026 · luppet.jp

Every LuppetX plan and price →

Strong points and limits

Strong points

  • Animates VRM files, including VRM 1.0
  • Streams tracked motion through VMC Protocol
  • Version 1.1.0 works offline
  • Free download requires no account or license

Limits

  • Support ended October 4, 2026
  • Requires an Ultraleap device and webcam
  • Windows 10 64-bit is required
  • Earlier versions stop working after server shutdown

Who it suits

LuppetX suits Windows users animating VRM avatars for streaming, remote meetings, or presentations. It requires an Ultraleap device and webcam, so it is for users with that hardware.

Verdict

LuppetX offers webcam and Leap Motion avatar tracking, with offline operation in version 1.1.0. Its ended support and specific hardware requirements are important constraints.

Where Specifiction places it

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