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# Tree City, made with Unity
- URL: https://ivanarellano.com/tree-city/
- Published: 2017-09-22T21:00:00.000Z
- Updated: 2026-10-25T13:48:48.000Z
- Author: Ivan Arellano Maurizi
- Tags: portfolio, demo

Walk through Philadelphia and learn about Philadelphia's street trees.

[Try the TreeCity demo](https://games.ivanarellano.com/treecity?ref=ivanarellano.com) in your browser or [browse the source code](https://github.com/ivanarellano/unity-tree-city?ref=ivanarellano.com) on GitHub.

## About

This WebGL demo was made in Unity and uses Mapbox's Unity SDK. Before this demo, I had only read or heard about GIS and didn't understand it at a deeper level other than "it's about mapping." After Hurricane Harvey hit Texas, I started to learn more about how storm-based flooding becomes more prevalent with the mass removal of trees in urban areas. Out of curiosity I looked at street tree maps where I live, in Philadelphia, PA, to gauge how well gathered our data is.

## Controls

- Arrow keys or W,A,S,D keys: Walk
- Left Mouse Button: View tree information on selection
- Esc key: Quit demo
- C key: Show controls

## Instructions

At the center of the screen is your aiming reticle. Walk around the city to see trees. Click on a tree to learn what kind of tree is planted there.