<b_jonas> slashlearn euclid//Euclid is a short geeky game in which the goal is to do Euclidean compass and straightedge constructions in as few steps as possible. It runs in the browser, found at "http://www.euclidthegame.com/". It was popular among #esoteric regulars in 2016-07.

Nobody killed the cyclops Polyphemos after he tried to eat a shipful of sailors, and this perceived injustice made Poseidon so mad he swore vengeance at him and the gods couldn't calm him down for ten years.