At present, there are several versions of the game "Battle of Angels". First of all, there are many rucksacks. The rucksack is actually a way for the game official to change a name and icon and then go online again to buy advertisements, so the names and icons you see are different, but the game is the same.

And even if the official version of the Battle of Angels, there are actually many third-party game platforms to cooperate and jointly launch a lot of channel services. Channel service is the independent operation of the third-party game platform.