1971

 Timeline of the Half-Life universe
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|description=Player shooting Ivan the Space Biker in an early version of Stalkyard.
|source=''Half-Life'' Beta
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{{Article|Image}}
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|description=Dead Ivan the Space Biker in an early version of Stalkyard.
|source=''Half-Life'' Beta
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{{Article|Image}}
{{Information
|attention={{Cleanup image}}CategoryImages for clean up (Half-Life)
|description=HECU grunts with M4s.
|source=''Half-Life'' Beta
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|cat subject=CategoryHECU imagesCategoryGlock 17 imagesCategoryM4 images
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