It only says Expected '}' (to close '{' at line 2), got 'game' help?

you're missing a } and a ) at the end of your code

local Tween = game:GetService("TweenService"):Create(
    game.Workspace.Baseplate,
    TweenInfo.new(
        100,
        Enum.EasingStyle.Linear,
        Enum.EasingDirection.In,
        0,
        false,
        0
    ),
    {
        Size = Vector3.new(0,2000,0):Play() 
        game.Players.PlayerAdded:Connect(function(player) 
            Player.CharacterAdded:Connect(function(char) 
                char.Humanoid.Dead:Connect(function() 
                    player:Kick("YOURE OUT MAN") 
                end) 
            end) 
        end)
-- \/\/\/\/\/ These bits are missing! \/\/\/\/\/

    }
)

Also format your code so its a little easier to read kinda like how i have so you can spot things like this