If you’d like to have your LP show up in Let's Plays > Completed Let's Plays simply tag @moderators in your thread and tell them your LP is finished. If someone else has uploaded your LP to this forum, DM @moderators with a link to your original LP as well as the LP Zone thread. The ownership of that thread will be changed to you after a short time.
The only real rule here is to pat yourself on the back for finishing an LP. Well done! 