how i can change maxplayers in half life 1 maxplayers is 6 nut i want to change it and how?

What to do:

In the file...\Steam\steamapps\common\Half-Life 1 Source Deathmatch\hl1mp\cfg\game.cfg

add the line

maxplayers xx

, where "xx" is the maximum number of players

, it works!

In server control panel navigate to settings page.
In startup command change +maxplayers {{MAX_PLAYERS}} to +maxplayers 10