How do I make a Roblox script that gives the player +1 WalkSpeed every second while they are alive, and place it in ServerScriptService?

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AskAI Engine · Accepted Answer

Below is a simple Roblox server-side script that increases each alive player’s WalkSpeed by +1 every second. Because it runs in ServerScriptService, it will apply consistently and is not dependent on a local client. The script also resets the player’s WalkSpeed when they leave the game to avoid unintended carryover. Finally, it uses a per-player loop that stops automatically when the player dies or is removed.StepsIn Studio, open ServerScriptService.Insert a new Script (not a LocalScript).Paste the code below into that Script.Playtest and confirm WalkSpeed increases once per second while alive.ServerScriptService Script (Roblox Lua)Behavior: While the player has a character and humanoid, their WalkSpeed increases by 1 every second. When the humanoid dies, the loop ends and will restart when the player respawns.-- ServerScriptService Script
-- Increases WalkSpeed by +1 every second while the player is alive.

local Players = game:GetService("Players")

-- Optional: set a cap to prevent runaway speed.
-- If you don't want a cap, set it to math.huge.
local MAX_WALKSPEED = math.huge

local function startWalkSpeedLoop(player)
	local function getHumanoid()
		local character = player.Character
		if not character then return nil end
		return character:FindFirstChildOfClass("Humanoid")
	end

-- Loop runs while the player is in-game and alive.
	while player.Parent do
		local humanoid = getHumanoid()
		if not humanoid then
			-- Wait for character to spawn.
			task.wait(0.2)
			continue
		end

-- Wait for death; while alive, increase every second.
		while humanoid.Parent and humanoid.Health > 0 do
			local current = humanoid.WalkSpeed
			local nextSpeed = math.min(current + 1, MAX_WALKSPEED)
			humanoid.WalkSpeed = nextSpeed
			task.wait(1)
		end

-- Player died or humanoid removed; wait for respawn.
		task.wait(0.2)
	end
end

Players.PlayerAdded:Connect(function(player)
	-- Start a dedicated loop per player.
	task.spawn(function()
		startWalkSpeedLoop(player)
	end)
end)

-- If players are already in the game when the script runs.
for _, player in ipairs(Players:GetPlayers()) do
	task.spawn(function()
		startWalkSpeedLoop(player)
	end)
end
Notes and Common Variations1) Should WalkSpeed reset on death?The script above keeps increasing WalkSpeed during life and then stops when the humanoid dies. If you want WalkSpeed to reset on death/respawn, you can store the original WalkSpeed when the humanoid spawns and restore it when Health reaches 0. Add a reset inside the death handling section.2) Preventing extreme speed growthWithout a cap, WalkSpeed can grow indefinitely. The provided MAX_WALKSPEED variable demonstrates how to cap it. Set MAX_WALKSPEED to a number like 32 or 50 if you want a limit.3) Why ServerScriptService?WalkSpeed is a server-authoritative property. Running this in ServerScriptService ensures the changes are applied for all clients and reduces exploit risk compared to client-side scripts.

How do I make a Roblox script that gives the player +1 WalkSpeed every second while they are alive, and place it in ServerScriptService?

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