Guilds are groups of players who share common interests, goal or playstyle. You can create a guild for a fee of 100 medallions at the top of the nexus or join a guild, you can invite other players to your guild, chat with them, and access an exclusive area the guild hall, a special area where you can meet up with your guildmates, where you can pop keys privately with your guildmates. Guilds are a great way to make friends, have fun and challenge yourself in the game.