Playable ideas for PC and mobile

Game development

I create games and interactive applications with Unity, Godot or suitable technology for Windows, Steam, Android and iOS.

Game development

Playable ideas for PC and mobile

The practical value for you

Concept, mechanics, interface, graphics, audio and publication can be developed as one coherent product.

Services covered here

  • Gameplay, systems and interface
  • Unity, Godot or project-specific engine
  • Graphics, music, sound and video
  • Windows, Steam and mobile preparation

What a project can look like

Project example

Keyvoya

The learning game combines typing practice, world travel and progression and is in a transparent pre-release testing phase.

Typical scenario

Indie game

A core idea is tested as a prototype and expanded deliberately into a full game.

Typical scenario

Interactive business application

Game mechanics communicate knowledge, workflows or products clearly.

From briefing to operation

1. Briefing

We clarify the goal, current situation, users and essential requirements.

2. Planning

You receive a rough framework for implementation, scope, timing and price.

3. Delivery

The project is built transparently, with regular feedback whenever useful or requested.

4. Handover

The solution is delivered or installed, tested and explained clearly.

5. Improvement

Support for agreed features and later extensions remain available.

What you receive

  • An implemented or installed and tested solution
  • Documentation, instructions and an access overview on request
  • Training for the people involved
  • Optional follow-up support, maintenance and improvements

Clear agreements

Platforms, scope, age target, rights and AI use are agreed transparently. Store or platform acceptance cannot be guaranteed.

IT-Service Castel

Frequently asked questions

Who is this service for?

Primarily small and medium-sized businesses, facilities and teams. Ambitious personal passion projects are welcome too.

Do you work on site?

Yes. On-site work is available in Berlin and Brandenburg and, depending on the project, throughout Germany. Travel effort and cost are agreed in advance.

How is the price determined?

Billing depends on the task, scope, risk and required support. You receive a transparent framework before work starts; there are no blanket bargain promises.

Can I get help at night or at weekends?

You can enquire at any time. Guaranteed acceptance, response or restoration times apply only when explicitly agreed. Any surcharge is confirmed before paid out-of-hours work starts.

How can I get in touch?

Directly by email, phone, WhatsApp or through the Castel community on Discord. The form only needs your name, email and message.

Selected service: Game development

Discuss your project

Briefly describe your project. I will clarify the goal, scope and most sensible next step with you.