XXXXXXXXXXXXXXXXXXXX SPOILERS END HERE Azure Sheep series and that's how we moved from a Cigarette smoking man look-alike to Nyarlathotep. Gman is now shown not only as a powerful humanoid alien being but as a god-like being who terrifies enough the Combine that they put him into a Citadel-like prison, some dev's joked he could easily snapped his fingers to erase the Combine from existence as Alyx suggested, and in the end he is able to completly alter timelines. 1 and 2 expanded a bit more about how he managed to mess with the space time continuum. Half-Life 2 : By 2004 we now have more signals about Gman being more than human, he did not age a bit, he stopped time in the ending. This portrayal of Gman has greatly influenced whatever fan made sequels or spin-offs set in the main storyline, we have seen in mod's from 1999 to 2004. agent, human but with some advanced technology, and/or the unseen administrator of Black Mesa (until the retcon of Breen in HL2).
Half-Life 1 : By 1998, the 'Gman' is mainly seen as an obscure bureaucrat or gov.
