Running or even playing on a private server is not a victimless "mod." There are severe consequences.
In the official game, your phone is just a puppet. The real "brain"—the logic that decides if a Wall Breaker hits its mark or how much Gold you truly have—lives on Supercell’s impenetrable servers. But Leo had found a leak from a decommissioned development branch. He clicked "Execute." The command prompt scrolled a waterfall of green text. clash of clans server files
Evidence of Supercell's stance on private servers can be found in public DMCA takedown requests. Multiple repositories on GitHub and other platforms have been removed following DMCA notices from Supercell, including the "BarbarianLand Clash Server" among others. If you host server files publicly, you run the risk of similar takedown action. Running or even playing on a private server