By agreeing to this agreement on Steam, you are both agreeing to the Tos of Steam, run by Valve, as well our very few rules that follow:

We do not condone cheating, if you find a vulnerability please notify us to help fix it. We do not want to ban you, but we will if we must. By all intents this is your copy of our game. We want you, and everyone else to enjoy it! Cheating is not fun long term. Anyone who has ever cheated knows that. That is rule 1.
Rule 2 is as simple as Rule 1. This is Rule 2: Please do not creep on people, it only hurts others. We will ban you for creepy behavior.

Please have a wonderful day, thank you for reading our rules!

Please keep in mind, all servers are Valve/Steam owned. You will get Vac Banned if you are caught doing something they do not like, we are not them.