Player UKN is destroying my base ( this base is in the house) in the city and he griefing , what I do ? I destroy his stars to my roof and I destroyed his house , I can get the ban ?
Which server? Where was the base? We do have a slightly different set of rules for the PvE servers vs. the PvP servers, but a few are common to both styles of play. Building on permanent structures is prohibited. If you were in a house that is part of the game anyone can destroy what you placed. If your base was outside of city/town limits then UKN is probably guilty of griefing.