I wish gog had more puzzle games. not low-effort, overpriced mobile ports, some of which are actually available here, but good ones worthy of attention they might get here with less trash littering the storefront than on steam.

you mean Pandora's box :D

yeah, might've mentioned it a few times, so definitely that (and other microsoft stuff), but there are others, old and new.

I'd like for more Match-3 games. They're really relaxing to play while hearing audio-books, podcasts, etc.
Unfortunately, it seems to me most match-3 games here are rated M. I might be wrong though.

I prefer solitaire for that but match-3 or mahjong will do too. a lot of them are low-effort reskins, but there are decent developers with higher quality products. the revills solitaires should all be here, for example, or green sauce match-3s.

Agree, it's a great chemistry themed puzzle game. And no, you have no need to know chemistry to play it :)

Also, the game have a key that you can use to play on Android. It's a bit hard to find the APK on spacechem website but it's there. Heck, might as well trow it here: http://store.zachtronicsindustries.com/spacechem

The game key is located in the instalation folder.