how to make a hide and go seek game with the timer and player chooser?

you could add a screen gui to the starter gui and edit it to whatever u want, then add a text label to that screen gui and then add this local script to the screen gui. This will only help with the timer, give me time as a think of a solution for the others.

local gui =  script.Parent
local text = script.Parent.TextLabel 

while true do
    wait(1) --change ONLY this number to how long 1 game will last, in seconds
    gui.Enabled = true
    text.Text = 1
    wait(1)
    text.Text = 2
    wait (1)
    text.Text = 3
    wait(1)
    text.Text = 4
    wait(1)
    text.Text = 5
    wait(1)
    text.Text = 6
    wait(1)
    text.Text = 7
    wait (1)
    text.Text = 8
    wait(1)
    text.Text = 9
    wait(1)
    text.Text = 10
    gui.Enabled = false

end 

this SHOULD create a 10 second timer on someone screens, I have not tested it myself, and this will certainly not be good since its not linked to the rest of the game if it doesnt work remember im still a novice scripter. lmk in the comments