Petr Kallen · Independent developer

Small worlds.
Useful ideas.

Independent games and apps for iPhone and iPad. Built with curiosity, care and a practical understanding of technology.

Explore the apps ↓

Made to explore.

Three classic adventures in one collection, with touch controls, a custom interface and integrated guides.

My contribution

I developed the collection interface and game selection, integrated the existing ScummVM GOB engine, adapted the controls for iPhone and iPad, and added in-app guides. The original games remain the work of their creators.

Game website ↗Coming soon to the App Store

iPhone & iPad

Wigglings

A woodland puzzle game about guiding a little crowd to safety with bridges, tunnels and other abilities.

My contribution

From the initial concept and game mechanics to the visual direction, graphic design and programming in Swift, SwiftUI and SpriteKit. I developed the gameplay logic, levels, controls, interface and progress saving, and prepared the app for iPhone and iPad along with the App Store materials.

Game website ↗Coming soon to the App Store

From the first idea
to a working app.

I develop native apps and games using Swift, SwiftUI and SpriteKit in Xcode. My work includes interface design, integration of existing engines, adaptation for iPhone and iPad, and preparation of builds and materials for App Store Connect and App Review.

SpriteKit · Swift · SwiftUI · Xcode

Let’s talk
about your idea.

A question about an app, a technical project or working together? Get in touch directly.

Emailpetr@kallen.czPhone+420 604 526 123Websitewww.kallen.cz
AddressPetr Kallennáměstí Odboje 300
544 01 Dvůr Králové nad Labem
Czech Republic