Timeline of the Half-Life universe{{Article|Image}} {{Information |attention= |description=Player shooting Ivan the Space Biker in an early version of Stalkyard. |source=''Half-Life'' Beta |author= |filespecs= |licensing={{Gamescreenshot}} |other versions= |cat artist= |cat subject=CategoryIvan the Space Biker imagesCategoryHEV Suit imagesCategoryGlock 17 imagesCategoryMP5 images |cat type=CategoryHalf-Life Beta screenshotsCategoryOfficial screenshots }}{{Article|Image}} {{Information |attention= |description=Dead Ivan the Space Biker in an early version of Stalkyard. |source=''Half-Life'' Beta |author= |filespecs= |licensing={{Gamescreenshot}} |other versions= |cat artist= |cat subject=CategoryIvan the Space Biker imagesCategoryHEV Suit imagesCategoryMP5 images |cat type=CategoryHalf-Life Beta screenshotsCategoryOfficial screenshots }}{{Article|Image}} {{Information |attention={{Cleanup image}}CategoryImages for clean up (Half-Life) |description=HECU grunts with M4s. |source=''Half-Life'' Beta |author= |filespecs= |licensing={{Gamescreenshot}} |other versions= |cat artist= |cat subject=CategoryHECU imagesCategoryGlock 17 imagesCategoryM4 images |cat type=CategoryHalf-Life Beta screenshots }}