Virtual Reality App for Fensterbau Frontale

  • Unity
  • C#
  • HTC Vive
Country: Germany
Release year – 2018
virtual reality app

Project background

Virtual Reality apps can be used to great advantage at trade exhibitions by presenting brand-related content that is both entertaining and informative. Users try out a company’s products where they can experience the look and feel of the products in a suitable environment.

This Virtual Reality app was designed exclusively for Fensterbau Frontale, a biennial trade show for window makers of all persuasions—architects, carpenters, window and façade manufacturers—from all over the world, took place in Nuremberg, Germany on March 21–24, 2018.

Girl with VR helmet


The idea behind the app was to implement a pilot project to present Virtual Reality’s value for businesses. By playing VR mini-games, businesses could experience the opportunities and business possibilities of Virtual Reality technology as an engaging means of marketing from their prospects’ side. As illustrated with windows, doors, and façades, the trade show’s theme, event visitors and exhibitors could easily feel the atmosphere and opportunities VR technology provides. A team from Invisible Toys was responsible for the technical side of the Fensterbau Frontale app, making the concept look and work as it was planned initially. It fascinated users with both graphics and gameplay. The team also actively participated in planning meetings and helped by offering a different perspective, fresh ideas, and best practices.

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Escape rooms

The core game takes the user through a series of Virtual Reality escape rooms with incremental levels of difficulty and complemented mini-games which visitors can pass using a VR headset and special controllers.

Limited time

Each room provided set of questions about different facades, windows, and doors users had to answer under limited time in order to continue. When the user won he or she was raised up onto the top of a skyscraper. When the time ran out he or she got to the dungeon.

Two mini-games

Also, there were two mini-games available as bonuses. A fruit ninja-like game was designed for users to feel the controllers. Another mini-game was rescue kitty made to provide more Virtual Reality gaming experience.


The player was going up in an elevator placed in a construction site and had to pick up a kitty hidden in a place that was difficult to access. The rescue operation was not an easy activity as the game graphics made users feel the lift acceleration and altitude as if they were looking for a cat inside a real building-in-progress.

Engineering Challenges and Wins


Gaming concept

Helped the client implement according to the requirements and formulate the game concept from the very beginning.


Immersive experience

To provide the best possible experience, the team brainstormed with the client, sketching the dynamic flow on paper before creating fully featured 3D scenes.

High-quality 3D graphics

High-quality 3D graphics

This was solved by decreasing the number of 3D model polygons, rendering baking, downloading only those scenes and objects that were used simultaneously and applying other designing know-hows.


  • Unity
  • C#
  • HTC Vive

Time and effort

  • Development: 400 hrs
  • Design: 202 hrs
  • Managment: 80 hrs
  • Total: 682 hrs

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