600 EUR
The riddle set includes 3 ticket receivers: but two of them are fake and perform a decorative function, and one is valid. Players need to take tickets and attach them to the recess of the working ticket collector. In the process of attaching a ticket with an RFID tag, the lights in the ticket receiver will light up according to the number of players.
As soon as all players attach their tickets, the lock will open or the next puzzle will be activated.