itch.io

You run it the same as every game in the world. 

You either play it on your browser without needing to download it, or you download the game, then extract it, and then finally run the executable.

it's very easy, this should guide you in case you are using VR headset like me 

I'm guessing that since you are having trouble running this game that you are using an iPhone/Apple device, because I also found some trouble running this game on my iPhone device

But no worries, since this game can be played on any computer browser, then it should play on any phone browser you have

Yes, even the iPhone browser

Just follow the instructions in this guide and the game should work fine regardless of the device you are using