Killer Instinct Season 3 released today on Xbox One and Windows 10 with at least one known issue. Unfortunately this issue does not seem to have gotten much press. In a post on one of the leading Killer Instinct fan sites, Daniel Duncan said “I encourage each and every one of you who plans to play both the Xbox One and Windows 10 version of Killer Instinct to read this post very carefully and take note of it! When Season 3 launches tomorrow, you must first sign into the game on your Xbox One console before you sign in to Windows 10. If you do not do this, your data will not carry over to the Windows 10 version and you’ll be starting the game with new save data, meaning all of your hard earned progress will not be available on the Windows 10 version of the game. Yes, you’ll basically be starting from scratch. Now, in the off chance that you no longer have an Xbox One, you can log in to your account on any other Xbox One console for the same results.”

There have been several new additions to Killer Instinct for Season 3. Four new characters have been added for Season 3, including a couple of fan favorites(Kim Wu and Tusk), and a pair of guest appearances(Rash from Battletoads, and the Arbiter from Halo). In addition Season 3 will have three brand new stages, such as the “Arena of Judgment” stage which is based on the Sangheili homeworld from Halo 5: Guardians. On the technical side, KI: Season 3 will introduce cross-play between Windows 10 users and Xbox One users, and feature improved visuals with an all new lighting system and a re-introduced screen space color adjustments. Combined with Season 1 and 2, players will have access to a roster of 26 fighters and 20 stages total. You can check out some of the newest gameplay on PC below.

Three versions of Killer Instinct went on sale today(Taken from the launch article on Xbox Wire):

Killer Instinct: Supreme Edition – ($59.99/£44.99/€59.99 on Xbox One, $49.99/£34.99/€49.99 on Windows 10)
The Supreme Edition includes characters from all 3 seasons (25 total), all retro costumes, all premium accessory sets, the VIP Double XP Booster and 18,000 KI Gold (limited time only). On Xbox One, the Supreme Edition also includes Killer Instinct Classic and Killer Instinct 2 Classic.

Killer Instinct: Season 3: Ultra Edition – ($39.99/£31.99/€39.99 on Xbox One and Windows 10)
The Ultra Edition includes all eight Killer Instinct: Season 3 fighters, starting with the release of Kim Wu, Tusk, Arbiter, and Rash on launch day followed by the remaining Season 3 fighters rolling out on a monthly basis. Additional content in this Edition include a VIP Double XP Booster, 8 retro costumes, accessory sets, bonus retro character colors, and 18,000 KI Gold (limited time only). Even more, owners of the Ultra Edition will get early access to characters and customization items before they’re available to Combo Breaker Pack owners or for individual sale.

Killer Instinct: Season 3: Combo Breaker – ($19.99/£15.99/€19.99 on Xbox One and Windows 10)
Purchase all eight fighters up front at a significant discount over the individual character price. Play as Kim Wu, Tusk, Arbiter, and Rash immediately on launch day, with the remaining Season 3 fighters rolling out on a monthly basis.

Killer Instinct: Season 3 – Characters a-la-carte ($4.99/£3.99/€4.99)
Individual characters from the Season 3 roster will be available for purchase after they have been released for both the Ultra Edition and Combo Breaker Pack. Characters will appear on a regular schedule for you to purchase, starting with Rash on launch day.