So-called "escape rooms" have been established as a leisure activity in many places around the world for around 15 years: small groups of people are locked together in a room or a type of apartment and have to get out of their "prison" again without outside help within a given time leaving.

In the room or in the apartment there are objects and hidden clues that help to find keys or determine numerical codes for door locks through clever combinations and joint thinking and solving individual tasks.

All this is now also available as a board or parlor game and – logically!

– also as a computer simulation.

The online community meets to play at https://roomescapemaker.com/, where you can create your own virtual escape rooms or try out those devised by other players.

For starters, I recommend the "Tutorial Escape" room in the "Popular Games" section to get to grips with the gameplay and operation, which even the inexperienced can quickly conquer.

After that, you can tackle the literally countless escape rooms from around the world.

If you really want to build your own escape room afterwards, you can get started after registering (free) on the website.

The basic building blocks for your own Escape Rooms are free of charge, but more complex elements are also available, of course for a fee.

Have fun!

Now our question:

Which American computer pioneer (died 2004) do we have to thank for the top left key on our computer keyboard?

Please send your solution proposal to netzraetsel@faz.de.

The closing date for entries is December 28, 2022, 9 p.m.

We are giving away an eBook voucher worth 25 euros.

Winners will be notified in writing.

The solution to last week's riddle was "Himmelspolizey" (sic!).