Funny how Steam has been making sales and events around demos for a while (called Next Fests) and some games absolutely blow up out of nowhere thanks to them.

Also some people think FF16 having a demo was some weird, oddball marketing move by Square Enix, except they have been making “try now, continue later” demos for games since Bravely Default.

Demos used to be everywhere back in the day! I think they have a huge impact, because it’s a way to try to play a game without dumping all the money on it without knowing what the gameplay is like and if its actually fun.

When I was a kid, DOOM having the first episode of the game available as shareware was huge and I used to walk to my friends place after school and watch him play until he would get bored and let me play for a while.

From an old interview in 1999 with John Carmack about this very subject (emphasis mine):

Carmack: DOOM 2 was explicitly a commercial release. We sort of half heartedly did some shareware distribution with Quake, but I think the industry has almost unanimously decided that the three or so level demo is the best test vehicle.

A lot of people consider themselves to have “finished DOOM” when they just finished the shareware episode.