I do not know if this is even possible.
I am looking for a way of generating a user/game variable changeable by actions in game.
Then other actions that happen on the basis of that variable.
Initaly consider a closed door.
Next to that door there is a panel that displays two Dni Number characters.
the panel had four buttons.
Two of the buttons increase and decrease the least significant digit and two increase and decrease the most significant digit respectively.
When the value (decimal) lets call that Variable XD'ni that relates to the displayed D'ni digits meets some pre-determined value the door opens. and appears open for all visitors to the age.
Now consider two or three doors and various values result in various options of open/closed doors.
Two D'ni digits give a value of 0 to 576 with three doors there are 8 variations of doors open or closed.
Some predetermined arbitrary cases each of these doors or combination of these doors to be open.
Consider two visitors to any given age either visitor can change the value of the door combination lock and one the door or combination of doors are open.
For the logic to work all players who see the doors must remain frozen while the display changes and the door state changes.
Core to this is some player or multiple player action that changes the state of some hidden game value and the resulting new value changes the state of the game for any given instance.