How to get the number of players that have a certain boolvalue?

``players = #game.Players:GetPlayers()

how can I change this so only if the player has a inGame score of 1 it will see the player as a player?

Inside the player I have a boolvalue named "inGame"

Firstly you cannot make delete players. I normally use a for i,v loop for this kind of stuff. I use :GetChildren() if the instance is directly under the instance you are looping through. If it is not directly under that instance you are looping through you use :GetDescandents.The diffrence between :GetChildren() and :GetDescandents is that :GetChildren only gets the direct children under the instance, :GetDescandents loops through the children of the instance you are looping through aswell

local players = game.Players
for i,v in pairs(players:GetDescendants()) do
	if v.Name == "inGame" then -- Get the instance name what you are looking for
		-- Run code here
	end
end