It’s on giveaway on Steam too: https://store.steampowered.com/app/286690/Metro_2033_Redux/

If anyone still hasn’t played the first game, you can find it free on Prime Gaming: https://gaming.amazon.com/the-outer-worlds-gog/dp/amzn1.pg.item.538ee4d5-dbf8-48d9-a835-44062e2acec0

Absolutely recommended!

Yeah, it’s easies and will make your life simpler as long as you want to do something the producer contemplated. As soon as you need a feature that is a little bit more peculiar, good luck with that.

And with this i don’t mean that Android is perfect, just that an even more closed ecosystem isn’t exactely the best choice.