I don't know why I suddenly thought of this, but does anyone remember that weird little game where you had to activate a bunch of switches to activate a Stargate-style thing? A little Googling turns up this Reddit query that describes it rather better than I can recall – but that query never got an answer either.
This is going to drive me nuts.
EDIT: Riddle solved! The game is Hapland. Coming soon to Steam!
https://store.steampowered.com/app/1...pland_Trilogy/
I will also leave a link to this list I stumbled upon in case I need it again.
https://techcult.com/the-150-best-online-flash-games/