How to make a main game algorithm?

I am making a fairly large game called "Juggernaut", but I have a bug that the "main algorithm", the part that runs when people get teleported to the map and they actually play. They do get teleported to map and get weapons like how I coded it, but the thing is when someone dies nothing happens, and they just spawn in the lobby, and one part works, when they die they do get a boolean variable named "alive" set to false, but the code doesn't react to that. Here's my "main game" code:~~~~~~~~~~~~~~~~~ for y=1, 600 do

wait(1)
Workspace.numberofplayers.Value = 0
for _, v in pairs(game.Players:GetChildren()) do
    repeat wait() until v.Character~=nil and v~=nil
    if v.alive.Value == true then
        Workspace.numberofplayers.Value = Workspace.numberofplayers.Value + 1
    end

end
while game.Players.NumPlayers < 2 or game.Workspace.numberofplayers.Value < 2 do
    b = true
end


if Workspace.numberofplayers.Value == 1 then
    for _,v in pairs(game.Players:GetChildren()) do
        if v~=nil and v.Character~=nil then
            if v.alive.Value == true then
                b = true
                local msg3 = Instance.new("Message", game.Workspace)
                msg3.Text=v.Name .. " has won!"
                wait(5)
                msg3:remove()
                for _, v in pairs(game.Players:GetChildren()) do
                    v.Character:BreakJoints()
                end 
                break
            end
        end
        if b == true then break end
        i = i + 1
    end
    if b == true then break end
end
if b == true then break end

end ~~~~~~~~~~~~~~~~~