Willi Krappen

Lemonverse

Co-founded a Münster-based agency for industrial VR hands-on training. Responsibility from concept through to on-site hardware deployment.

2021–2024

Industrial safety, machine-operation and maintenance training traditionally happens on the real equipment: risky, expensive, hard to scale across sites. Lemonverse addressed exactly that. Employees put on the headset and walk through tutorial mode, hands-on scenarios and an assessment phase against a virtual twin of the actual rig, built in Unreal Engine. Alongside that, public web projects were built in React and Three.js. As technical co-founder responsible for stack choice, build pipelines, engine work and on-site hardware setup. References include: VR maintenance training for Windmöller & Hölscher, an interactive visitor app for Allwetterzoo Münster, a carriage ride simulator for the Horse Museum Münster and a digital guide for the collegiate village of Asbeck.

Year2021–2024ClientLemonverse GmbHRoleCo-founder & technical lead - stack, engine, build pipeline, hardware setup

About the company

Lemonverse was a Münster agency specialised in VR, AR and mixed-reality applications focused on industrial training. Delivery ran from storyboard to the VR headset on the factory floor.

Selected projects

A selection of delivered projects, from industrial training to museum installations.

Windmöller & Hölscher - VR maintenance training

Training for maintenance and changeover procedures on a virtual machine twin in Unreal Engine. Procedures can be practised safely without taking a real production line offline.

Allwetterzoo Münster - interactive visitor app

Web app in React and Three.js: animal and enclosure info, 360° content and learning games, from a CO₂-saving game to an animal identification and collection game.

Horse Museum Münster - carriage ride simulator

A hardware and software combination for the Westphalian Horse Museum: a virtual horse-drawn carriage rides through a landscape. The reins are mechanically linked to a joystick, so steering feels like really driving a carriage. Simulation built in Unreal Engine.

Collegiate village of Asbeck - interactive guide

Digital tour through the historic collegiate village of Asbeck (Legden) and its museum, delivered as a web project.

Process: from idea to headset

Six phases, from workshop to hardware setup. Regular milestones.

  1. 1

    Discovery

    Collect materials and ideas with subject-matter experts, clarify learning objectives, build a storyboard, match a project plan to budget.

  2. 2

    Capture

    Capture 360° footage and 3D content on-site with the customer, using real machines or training environments.

  3. 3

    Engine Build

    Build the VR scene in Unreal Engine, with a tutorial mode, hands-on exercises and an assessment phase. Public web projects such as the zoo app and the museum guides were built separately in React and Three.js.

  4. 4

    Workshops & Iteration

    Regular workshops with the customer over Teams and Miro; feedback and corrections flow into scheduled milestones.

  5. 5

    Deployment & Hardware

    On-site setup of VR hardware at customer locations, training internal staff so a VR expert is always available in-house.

  6. 6

    Tracking

    Per-person learning progress lands in a dashboard with completion rates and history, visible to HR or the training team.

My role

  • Co-founder of Lemonverse GmbH (Münster, 2021).
  • Technical lead across the company's lifespan: stack choice, build pipelines, engine work.
  • VR engine work in Unreal Engine for the training projects; web projects (zoo app, museum guides) in React and Three.js.
  • Built the learning-progress dashboard (React frontend + tracking backend) shipped with the training projects.
  • On-site hardware setup at customer locations, including training of internal trainers.
  • Direct contact with industry and research stakeholders: requirements workshops, storyboarding, milestone reviews.

Note on the company

Lemonverse was wound down in 2024. lemonverse.de is a reduced marketing site from the active period; it shows the product portfolio of the time and is linked here for reference only. Customer materials are under NDA and not public on the live site.