Introduction In CS:S, while in-game, you can record your screen. Such a recording is often called a "Demo". Demos you record are stored on your computer in a .dem file usually in your cstrike directory. Recording a demo You must have the Developer Console enabled for this to work. Also, you should be on the server and in Spectate mode. Open console (hit ~ key) Type record Demo1;clear;status Hit enter, then hit Esc Now everything you see and hear in-game is being recorded to a file called Demo1.dem in your cstrike folder. To stop recording: Open the console again and type stop Hit enter Uploading a demo To upload a demo visit one of these websites: File Dropper (preferred) SendSpace You should be able to upload a demo without registering an account. Simply click on their Upload/Browse button then navigate to your game directory and select the demo you want to upload.