It’s available for play/download on Mac, Windows, Xbox, Steam, in Google Chrome (browser play), iPad, Playstation 4. There’s a free demo on Steam, but please purchase the game for play-through.
You may be interested in some of the background to this game, available on the FAQ: https://www.supergiantgames.com/blog/bastion-faq/
Please keep notes on everything about this game, from the platform you choose to your initial assessment of the narrative and graphics. Remember, you will be playing with a critical eye. So you may want to play through first for enjoyment and then another time through thinking about all of the theories that we’ve been amassing this semester.