One Character per GM account

Download:

Hercules Patch
Hercules Plugin

Very simple trick, only allow them to create/login their character on slot 0

if you want to make them limit to 3 characters, then allow them to only use slot 0,1,2
if ( slot >= 3 && sd->group_id > 10 && sd->group_id < 99 )

 

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One char per GM Account