Many media outlets awards their favorite games at trade shows with awards, and those normally come in the forms of emblems that can be attached to each game's booth.
If you're curious to see how many awards were won by some of the big games at E3, here are the "walls of fame" of those we could find.
Uncharted 4
Horizon: Zero Dawn
Incidentally, this sparked a round of compliments among directors.
Halo 5: Guardians
Tom Clancy's The Division
Tom Clancy's Rainbow Six: Siege
Star Wars: Battlefront
Fallout 4
(Unfortunately the wall is partly obscured, but it still gives an idea of how many awards the game received)
As an added bonus, here are a couple of E3 moments shared by Uncharted 4 Creative Director Neil Druckmann.