: These act as the digital license for the game; without them, you may see a "Renew License" error.
: Since the game is online-only, developers in the emulation and modding community (such as those for the RPCS3 emulator) have worked on "offline patches." These allow players to load into maps like "Crash Course" to test characters and abilities without a server connection.
: These remain the most stable ways to play, with active player counts on platforms like Steam.