WoW: Forever uses rulesets instead of a realm list. Four are available at launch: Normal, PvP, Roleplay and Roleplay PvP. Hardcore follows some time after launch.
Grouping, dungeons and raids work only inside one ruleset and one faction; battlegrounds can mix rulesets, except Hardcore. There is no free switching between rulesets: a different ruleset means a new character.
On the PvP ruleset an account plays one faction: after the first Alliance character there, no Horde character can be created on it (and the other way round). Normal, Roleplay and Hardcore allow both factions. Faction balancing may temporarily limit character creation.
Collections and Legacy Points are shared across rulesets, except Hardcore. A Hardcore character that dies can move to another ruleset, including PvP.
Every character has a two-part name that must be unique in the whole region, not per server. The preferred chat language is an account-wide setting with a 24-hour cooldown.
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