Ask HN: What's a browser-based game you like to play?

Mostly emulations

Manic Miner for the ZX spectrum, released 39 years ago Keys: Q W and space http://torinak.com/qaop#!manicminer

Chuckie egg, Keys: space to jump AZ up/down ,. left right https://bbcmicro.co.uk/game.php?id=25

GeoGuessr