Each Lineage 2 private server likes to rework the client and add their own add-ons. Often these add-ons are incompatible between servers.
It is for the normal operation of your game client that you need to install a patch on a clean game client. If you install a patch not on a clean game client, you may encounter game errors or crashes at the most inopportune moment.
Below are links to download clean clients of the L2 game, without any additions and completely ready for installation. For convenience, you have the opportunity to download Lineage 2 through file sharing services and via Torrent. You just need to download a clean client, install your server patch in it and enjoy the normal game.
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Download Torrent