https://www.gog.com/game/beneath_a_steel_sky
So, this is a classic game (came out in 1994) that I downloaded years ago, but only got round to playing the other week. I really recommend it! It's point-and-click, takes a couple of afternoons to complete, best played with a friend so you can bounce theories off each other since most of the gameplay is about solving puzzles. I had more fun playing this than I've had with a game in years, honestly. It's free to play. And it's 87MB. :P
I played Broken Sword years ago and although I enjoyed it, sometimes the solutions to the puzzles in that felt a bit random. Although Beneath A Steel Sky is an earlier game from the same team, it's more logical, imo. There's no equivalent to that goddamn goat.
Beneath A Steel Sky is set in a futuristic dystopia, mocking bureaucracy, plastic surgery, inequality, abuse of power, environmental depradation, Science Gone Wrong... classic 90s scifi. With brilliant OTT voice acting and a lot of silly double entendre. The description on the linked GOG page makes it sound a lot more serious in tone than it actually is.
Two in-game adverts:
"Suspicious of your neighbours? Turn your paranoia into hard cash! Contact Neighbourhood Watch Scheme, Security Services, 826."
and
"Amaze your friends with our accessories! Safe hermaphro-surgery techniques -- Burke's Bio-surgery"
Cons: The opening is blah and the music is annoying (very MIDI). Nearly every character is male.
Pros: There's a grouchy robot that's looking for any excuse to blowtorch everything it encounters. I identified.
So, yeah, I recommend it. :)
For some reason reminded me "Machinarium" and "I am not a Monster!".