Windows XP SP3* (Windows 7+ recommended), Mac OS X 10.7 (or higher). 1GB of RAM minimum (for best experience we recommend 2GB or higher of RAM)
Supported web browsers – Internet Explorer 10 or higher (note that Microsoft Edge is not supported), Firefox with the Unity plugin installed, Chrome (uses WebGL) or Safari (uses WebGL).
Minimum usable screen resolution between 1280×800 to 2560×1440
Install Unity3D web player for browsers (version 4.2+).
Allow downloading of MIME type for unity3d at proxy or firewall application/vnd.unity
Maximum object size in proxy or firewall to be at least 10MB
Allow file extension .unity3d