Quick rundown of killer instinct titles.
Back in the day, you had killer instinct 1, killer instinct 2 and killer instinct gold, these are the older killer instinct titles.
The new one is an exclusive pc and xbox one title, it's also available on steam since a few months.
The different season resemble character packs which were released for the new ki, it started as a free game with characters you could purchase, there were 3 seasons of characters till now.
You can also get a definitive edition, which holds all 3 character seasons pluss two aditional ones.
Personally speaking, I like the new ki the most out of the bunch, it hits quite hard, literally, it has an awesome gameplay feeling, and the soundtrack makes it a hundred times better, as long as you are a fan of metal and electro beats.
Hömma, willze watt von mir oder wie, weil wenn nich, dann lass dir mal sagen, laber mir kein Kottlett anne Wange und hömma, wo wir gerade dabei sind, dann iss hier hängen im Schacht, sonns klapp ich dir hier die Fingernägel auf links, datt kannze mir mal glaubn.