Submachines

I have just discovered two new games in Mateusz Skutnik’s Submachine series, Submachine 2: The Lighthouse and Submachine 3: The Loop.
(Here’s a link to the original Submachine)
While the atmosphere of a Skutnik’s “escape” game is often gloomy, the gameplay itself is friendly — there are no dead ends which require you to restart. They do require some cultural knowledge, however, such as English color names.