I don’t have 4, but if it’s like 3 then there are regular characters who can die and are persistent, then there are seasonal characters who can die but may only be created at the beginning of, and are deleted at the end of, a given season.
Then there’s hardcore, who are persistent forever but can only die one time. All three have their own ecosystems in which characters created in a given mode can share gold, certain upgrades, and items with each other, but not outside of their own mode. You can have multiple hardcore characters share items and gold, but you can’t give those to regular or seasonal characters, and so on.
I don’t have 4, but if it’s like 3 then there are regular characters who can die and are persistent, then there are seasonal characters who can die but may only be created at the beginning of, and are deleted at the end of, a given season.
Then there’s hardcore, who are persistent forever but can only die one time. All three have their own ecosystems in which characters created in a given mode can share gold, certain upgrades, and items with each other, but not outside of their own mode. You can have multiple hardcore characters share items and gold, but you can’t give those to regular or seasonal characters, and so on.