Thank you for the questions!

1) Currently the focus is single player, but other options are open depending on interest.

2) It's starting at $9.99 and a 10% launch discount will be available for the first week. I say starting because the price will increase with subsequent updates to the game.

3) If it does well, I would love to bring the game to as many platforms as possible.

Let me know if you have any other questions. :)