GUI Visible to different players in the Game?

All you have to do is clone the GUI via local script. So, if you have a button that you click, that should be a local script. The button could then clone a GUI from replicated storage into the player that clicked the button.

Or you could use a remote event to fire a specific client and do something that way.

Hello, I wanted to answer your question since I've been able to solve this, though I do not know if you want when a GUI button is clicked it shows/hides the GUI or if you click a part you get the GUI, so I'm gonna tell you how could you do this with a GUI button.

1- Go to StarterGui and insert a ScreenGui. 2- Add a TextButton and a TextLabel to the ScreenGui. 3- Type whatever you want on the Text of the TextLabel. (Optional) 4- Add a LocalScript to the TextButton. 5- Type this on the LocalScript:

script.Parent.MouseButton1Click:Connect(function()
    local Gui = script.Parent.Parent.TextLabel
    if Gui.Visible == false then
        Gui.Visible = true
    elseif Gui.Visible == true then
        Gui.Visible = false
    end
end)

What this script does is that if the TextLabel is visible, it makes it invisible and vice versa.

I could also help you to make a Dice with a randomly generated number, but only if you'd like me to. If you are very new with scripting, I could give you a more in-depth explanation about this.