Gamer68
Fujin!
Just answering some questions, real quick:
If you want to learn how to play the game, learn about the mechanics, characters, etc, I recommend this guide: https://ki.infil.net/
This is easily the best guide that has ever been made for a fighting game ever, in my opinion. Not everything on the site is 100% accurate (mainly the statistical comparisons and stuff), but it offers so much useful information very quickly. It also has guides on how to play as or against characters.
- Microsoft Store should have a free version of the game. Comes with Jago, plus a free rotating character every week. I believe you can unlock Orchid from the Shadow Lords mode as well.
- Windows Store version is fully cross-play compatible with the Xbox version of the game.
- Steam version is also cross-play, but not in Ranked mode. You should still be able to play Casuals and Lobby matches with people, though.
- Steam version usually goes on sale for $10 every time there's a major steam sale. There should be another Steam sell in October around Halloween, and I wouldn't be surprised if KI will be $10 again. The game could also go on sale sooner if it happens to be apart of a random flash sale or something.
- Steam version comes with all characters, skins, etc.
- Killer Instinct: Definitive Edition is free with Xbox Game Pass.
- The game also seems to be on sale on the Microsoft Store for $10, but only for TODAY. (like at @hatyr said)
If you want to learn how to play the game, learn about the mechanics, characters, etc, I recommend this guide: https://ki.infil.net/
This is easily the best guide that has ever been made for a fighting game ever, in my opinion. Not everything on the site is 100% accurate (mainly the statistical comparisons and stuff), but it offers so much useful information very quickly. It also has guides on how to play as or against characters.