Xbox owners are getting their hands on four more games for free in January. Major Nelson today announced that Killer Instinct and Zheros will be released on Xbox One, while DiRT Showdown and Deus Ex: Human Revolution will be free on Xbox 360, though these will also be playable on Xbox One.
Killer Instinct: Season 1 Ultra Edition will be free throughout January, and Zheros will be available as a free download from January 16th to February 15th. DiRT Showdown will be free from January 1st until the 15th, before Deus Ex: Human Revolution goes free from January 16th until January 31st.
This also acts as a reminder to download December's free titles while they are still available.