Tibia

[Catar]

first, lots of, lots of accounts.
second, good scripts to level them up
third, multiple clients open at once running bots at different locations/spawns/servers farming items that are valuable, selling them on market/npc, sending money to main character that u dont use bot at.
repeat 2 and 3..


Last.
Profit: Selling that gold or not banned yet accounts on internet.