Developer Ed Boon stated about the development of the game, "We are pushing the boundaries of Mortal Kombat to allow players to experience the franchise in new ways, while still staying true to its core visceral nature... With Mortal Kombat: Onslaught, we reimagined Mortal Kombat into a strategic team-based collection [role-playing game] with fast-paced, group melee combat that both new and existing fans can enjoy."[6]
The game was shut down on October 21, 2024, as had been announced in July following the reported closure of the company's mobile division.[2]