What If Half-Life Was Made in 1989?

Half-Life was made in 1998 and it was considered one of the best first person shooters out there. What if the game was made nine years earlier?
==Changes==
*The gameplay would be changed to a Metroidvania platformer with modern day releases changing to the classic first person shooter gameplay.
*More Half-Life games would have been released due to this.
*The Half-Life world would be more fleshed out.
*IDW would be publishing a comic book series set in the universe.
*
==Games==
#/Half-Life/ (1989)
#/Half-Life 2/ (1991)
#/Half-Life 3/ (1994)
#
==Comic==
See /Beware the Combine/.
==Trivia==
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