"Development for Half-Life 2 started almost immediately after Half-Life 1," Twitter user Soliera commented. "The earliest footage ever for Half-Life 2 is called Get Your Free TVs and it’s running in what looks like the earliest build of Source out there (basically GoldSrc) with Half-Life 1’s HUD and dates to 1999."
Fans have also pointed out that in terms of design, the images are similar to the gravity gun that appeared in one of the early concept arts of Eli Maxwell.
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