OTClient Builder - programa permite que você mude o IP, URL do site, a chave RSA e até mesmo PIC (background) do cliente tibia
Download: http://www.2shared.com/file/m2pk2HAD/OTClient_Builder.html
Scan: http://virusscan.jotti.org/pl/scanresult/e3675f40ff4f27b594bfc8dfc622b38232a8addd