Mortal Kombat 1 is doing more than just restarting its timeline to reinvent itself. Instead, it preserves what’s made it special over its 30-year existence while delivering its deepest combat system yet. Mortal Kombat 1 is doing more than just restarting its timeline to reinvent itself. Instead, it preserves what’s made it special over its 30-year existence while delivering its deepest combat system yet.