Roblox game pass check script

-- Game pass check: gives a faster walk speed to players who own the pass.

local GAME_PASS_ID = 0        -- replace with your game pass ID
local PERK_WALK_SPEED = 24    -- what owners get (the normal speed is 16)

local Players = game:GetService("Players")
local MarketplaceService = game:GetService("MarketplaceService")

local function ownsPass(player)
	if GAME_PASS_ID == 0 then
		return false
	end
	local ok, result = pcall(function()
		return MarketplaceService:UserOwnsGamePassAsync(player.UserId, GAME_PASS_ID)
	end)
	if not ok then
		warn("Could not check the game pass for " .. player.Name .. ": " .. tostring(result))
		return false
	end
	return result
end

local function applyPerk(player)
	local character = player.Character
	local humanoid = character and character:FindFirstChildOfClass("Humanoid")
	if humanoid then
		humanoid.WalkSpeed = PERK_WALK_SPEED
	end
end

local function onPlayerAdded(player)
	local owns = ownsPass(player)
	player:SetAttribute("HasPass", owns)

	-- Give the perk every time the character spawns.
	player.CharacterAdded:Connect(function()
		if player:GetAttribute("HasPass") then
			applyPerk(player)
		end
	end)

	if owns then
		applyPerk(player)
	end
end

Players.PlayerAdded:Connect(onPlayerAdded)
for _, player in Players:GetPlayers() do
	task.spawn(onPlayerAdded, player)
end

-- If the player buys the pass while playing, give the perk straight away.
MarketplaceService.PromptGamePassPurchaseFinished:Connect(function(player, passId, wasPurchased)
	if wasPurchased and passId == GAME_PASS_ID then
		player:SetAttribute("HasPass", true)
		applyPerk(player)
	end
end)