I'm pretty sure Doom will be the most popular (and my pick too), but I'll throw a shout-out to Epic Pinball; that Android table was the best one in the game anyway.
The original Transport Tycoon was distributed as shareware, would have been 95 or 96 when I was playing it off a shareware disc.
Not sure if TTD got a shareware release too, but i got that one as a retail boxed version.
But for 94 or 95 if you didn’t have a shareware version then your game was pretty much doomed.