Test it like a player
A brass plaque in the hallway carries the year the building opened. The lock asks for four digits, the hint says 'the year on the plaque', and the reveal is the address of the next stop.
← Lock types
Numeric code
The default for anything a player can read as digits: a date, a count, a room number, a result. Three to six digits is the useful range, because a four-digit code is guessable in the abstract but not when the digits have to be found.
Create a free lock →Numeric code
Clue:
Enter the correct 4-digit code (the simplest sequence).
Wrong answer, try again.
Set the answer
Choose the number of digits, then type the code on the same keypad your players will use.
Templates
Easy5 min1 step
Math riddle lock
A math riddle with a four-digit answer: one chain of small sums ends in the code. A warm-up for the start of a math lesson, on the class screen or on phones.
Locks used: Numeric code
Available in: EN · FR · ES · CA · PT
Easy5 min1 step
History date lock
A year hidden in a riddle, entered on a four-digit lock. A history opener that gets a whole class arguing about centuries and decades.
Locks used: Numeric code
Available in: EN · FR · ES · CA · PT
Easy20 min3 steps
Mini classroom escape room
Three rooms, three subjects, one shared screen: a math chain, a science poster and a caretaker's note. A twenty-minute classroom escape room for a whole class, no equipment beyond the projector.
Locks used: Numeric code, Written answer
Available in: EN · FR · ES · CA · PT