Look for dedicated "classic gaming" or "retro FPS" archives. Many fans have packed the 1.3 version into a single installer.
CS 1.3 shines best in a local area network (LAN) environment. If you have friends connected to the same Wi-Fi or network switch, one person can host a game via the "Create Server" option, and others can seamlessly join through the "Local Network" tab in the server browser. Safe Downloading Tips Download Counter Strike 1.3 For Pc