How to make a horror game in Roblox Studio

Roblox horror runs on atmosphere more than code. One good monster script, careful lighting and sound, and a map with a clear goal (find the keys, escape the house) are enough for a game people record and share.

The core loop

Every horror game comes down to one loop that players repeat. Build this first, in grey blocks:

1. Explore a dark area
2. Find an item or solve a small puzzle
3. Hide or run when the monster comes
4. Unlock the next area or escape

Systems you need

Build order

1. 1

   Map blockout

   Rooms, corridors and one exit. Make sure there are loops so players can escape a chase.

2. 2

   Lighting and sound

   Set the mood before writing any code; walk the map in Play with headphones.

3. 3

   The monster

   A rig in Workspace with the script below. Tune its speed to be just slower than a sprinting player.

4. 4

   Objectives

   Three to five items to collect with ProximityPrompts, and a door that opens when all are found.

5. 5

   Pacing

   Quiet stretches, then a scare. Constant chasing stops being scary within minutes.

The key script: Monster that chases the nearest player

Where it goes: Workspace > Monster (Model) > MonsterAI (Script).

• The monster is a rig (Avatar tab → Rig Builder) with a Humanoid and HumanoidRootPart, placed in Workspace.
• Anchored walls and floors are what pathfinding walks around — make doorways at least 5 studs wide.

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

local monster = script.Parent
local humanoid = monster:WaitForChild("Humanoid")
local root = monster:WaitForChild("HumanoidRootPart")
root:SetNetworkOwner(nil)

local SIGHT_RANGE = 80
local path = PathfindingService:CreatePath({ AgentRadius = 2, AgentHeight = 5, AgentCanJump = true })

local function nearestTarget()
	local best, bestDistance = nil, SIGHT_RANGE
	for _, player in Players:GetPlayers() do
		local character = player.Character
		local target = character and character:FindFirstChild("HumanoidRootPart")
		local targetHumanoid = character and character:FindFirstChildOfClass("Humanoid")
		if target and targetHumanoid and targetHumanoid.Health > 0 then
			local distance = (target.Position - root.Position).Magnitude
			if distance < bestDistance then
				best, bestDistance = target, distance
			end
		end
	end
	return best
end

-- Touching the monster is fatal.
root.Touched:Connect(function(hit)
	local victim = hit.Parent:FindFirstChildOfClass("Humanoid")
	if victim and hit.Parent ~= monster then
		victim.Health = 0
	end
end)

while true do
	local target = nearestTarget()
	if target then
		local ok = pcall(function()
			path:ComputeAsync(root.Position, target.Position)
		end)
		if ok and path.Status == Enum.PathStatus.Success then
			-- Walk a few points, then plan again: the player keeps moving.
			local points = path:GetWaypoints()
			for i = 2, math.min(#points, 5) do
				if points[i].Action == Enum.PathWaypointAction.Jump then
					humanoid.Jump = true
				end
				humanoid:MoveTo(points[i].Position)
				humanoid.MoveToFinished:Wait()
			end
		else
			humanoid:MoveTo(target.Position)
		end
	end
	task.wait(0.2)
end

How it works

• Re-planning every few waypoints keeps the monster on the player's trail without computing a path every frame.
• To make it fair, check line of sight with workspace:Raycast before it starts a chase, and let hiding spots set an attribute the monster skips.
• Give the monster a sound (a breathing loop in its HumanoidRootPart) so players hear it before they see it.

How horror games make Robux

• Cosmetic flashlights and character skins.
• Extra lives or revives as developer products in longer chapters — keep them optional.
• New chapters as free updates bring players back; paid access to whole chapters tends to hurt growth.

You receive 70% of what players spend on game passes and developer products; Roblox keeps 30%.

Common mistakes