The Super Robot Taisen series, also known as Super Robot Wars. The series is basically a crossover franchise where each game is unique and features its own set of crossovers between popular Japanese mecha anime. It's a very large franchise with a massive amount of games, spin-offs, and even its own anime based off of its original characters that appear in the games. The original characters even have their own saga exclusively about them which doesn't include mecha anime and just its own original plot. Only four games have been released outside of Japan, those being Super Robot Taisen: Original Generations, its sequel, and a saga that acts as an alternative universe to the Original saga. They have been the few games to get localized and they didn't sell well quite fortunately. However, with the new upcoming title they are for the first time ever releasing it outside of Japan, only in Southeast Asia and China though. Not the United States. It will be receiving an English translation for the first time ever. The original games only got localized because they featured no licenses from anime series. This is the first time we're ever getting an English version for a main, licensed game.