[frool]

Hi titan_rw.

Sometimes i have the same problem.

You could do the following things. When you type "setmaster" in console you'll see a list of master servers (usually two). You can remove them by "setmaster remove". So your server won't show in the serverbrwser. You can add them later when you have finished playing.

A more simple method that i only tested on l4dtoolz is the following:

After my friends joined the game i've set sv_maxplayers to the amount of ppl in the game. So nobody would be able to join your server cuz he gets a "server is full".

For the linux version the command is l4d_maxplayers.

Usually this cvar is set in your server.cfg so you have to change it every mapstart.