How To Download It and play it: (you need WIN.RAR in order to download this) You click the download button, and you open the zip file. You need to first execute the file to a folder, once you execute it click "Half Life GL" And the game will open!                                                                                                                                                                                                                                      Controls: To walk you need to use E S D F in order to walk, The E is to walk foward. S is to go left, D Is to go backwards and F is to go right. If you want to go to the main menu you press ESC on your keyboard in order to go to the main menu, if you want to close it you press ESC again and it will close. If you want to quit the game, you press ESC and use the up and down arrow keys to go up and down, and go to quit and press ENTER on your keyboard and then its going to ask you to press y to quit, Press Y and you will exit out of the game!