Cube Escape (Rusty Lake)

Cube Escape is Rusty Lake's free series of point-and-click escape rooms, playable straight in the browser. Each chapter drops you in a single room full of drawers, dials and objects that only make sense once you have found the thing three rooms earlier. The puzzle design is fair, the atmosphere is memorably odd, and there is a lot of it: the collection runs to a dozen-plus rooms.

It is a single-player game, so treat it as a group activity rather than a multiplayer one: one person shares their screen and drives the mouse while everyone else shouts instructions. That format works surprisingly well on a game night call — nobody has to install anything, and the group argues productively about what the symbol on the clock means. OPG does not host these games; the Play button opens Rusty Lake's own site.