The game card first carries the “Enroll” button. The organizer accepts the application — by hand in some games, automatically in others — and “Enter the game” appears in its place. The button starts working once the game has begun.
Everything you need while playing is on one page: the level name and the answer box at the top, the task text below it, and under that the hints, which open on a timer or are taken by a button for a penalty.
The page never reloads: an answer leaves and comes back in place, and the “Previous answers” list remembers what has already been tried.
The looks are set by the author of the game: colours, fonts and images differ from game to game, but the answer box and the hints always stay where they are.
Not in every game — only if the author turned it on:
A message from the organisers does not arrive as a notification — it appears on the page after the next refresh. If you have been quiet for a while and have not refreshed, you have not seen it yet.
City games are played from a phone, and the level page is built for a narrow screen: the same answer box on top, the same text underneath.