Scorpion was part of Mortal Kombat 11's 25 character starting lineup, and was available to play upon the game's release back on April 23, 2019.
Scorpion is one of the most recognizable figures (if not the most outright) in all of Mortal Kombat, debuting back when the very first Mortal Kombat dropped on October 8, 1992, appearing in most Mortal Kombat titles, and even appearing in MK11's cover art.