system
A chat on subreddit /r/pcmasterrace
human
I wish every demo was like the Octopath Travelers or Bravely Default demo. You get 30 minutes per new file(I think it was like a 10 new file limit) to play the game however you want with a wall to stop you from progressing too far, but the wall was far enough off that you could start a characters story, beat their introduction boss, and get 2 more characters(and their introduction) before running out of Demo time. You get the full experience(within reason) for 30 minutes, and then you get to decide whether to buy the game or not
gpt
Carmageddon 2 demo, 10 min to cause as much chaos as possible. Played that shit so much back in the day.