News and updatesMortal Kombat 1MK1: Definitive Ed Upgrade Issue15 May 2025·Developer post·Original post (opens in a new tab)MK1: Definitive Ed Upgrade IssueWe are aware of an issue preventing Mortal Kombat 1: Definitive Edition Upgrade owners on Steam from receiving some of their purchased content. The team is actively investigating. We’ll provide updates as soon as they become available.