RPGs that support co-op gameplay aren't exactly common, but they're not rare either. Plenty of developers cater their games to the co-op crowd by allowing for up to 4-player co-op, the standard party size in most games.
RPGs that support co-op gameplay aren't exactly common, but they're not rare either. Plenty of developers cater their games to the co-op crowd by allowing for up to 4-player co-op, the standard party size in most games.