Player Guilds and Clans

Membership is recorded by the server. A guild has a roster, officer ranks with permissions, a private chat channel, often a shared bank, and sometimes a tag displayed beside every member's name. Those features convert an informal friend group into an institution with succession problems, resource disputes and a recruitment policy, none of which the game ever wrote a rule about but all of which it now supports.

Origin Systems supported guilds in Ultima Online in 1997 because players in shared worlds form groups regardless, and unsupported groups are invisible to the game. Formalising membership let the server enforce shared property, mark allegiance during open conflict, and give organisations something concrete to fight over. Text-based multi-user worlds had featured player groups for years, so the innovation was tool support rather than the social fact.

Obligation to other people is the most powerful retention mechanism the medium has found, which is both its value and its ethical problem: players log in because friends are counting on them, not always because they want to. Guilds also carry social work the game cannot, supplying teaching, moderation and welcome, and their collapse is usually what ends an individual player's involvement entirely.