How to make a survival game in Roblox Studio

What makes a survival game work

The loop in one line: gather, craft something that lets you gather faster or survive longer, get through the night, go further the next day.

• A fast first tool. The first recipe should be possible within a minute: two sticks and a stone make an axe. Players who cannot craft anything quit.
• Pressure, not panic. Hunger and nights push players forward. Drain too fast and it becomes a chore; too slow and nothing matters.
• Tools that change how you play. An axe chops faster, a torch makes the night safe, a wall keeps things out. Each craft should feel like a step.
• Something to protect. A campfire or a base gives the night a centre and gives groups a reason to work together.
• Clear rules about death. Players should know what they lose when they die: everything, half, or nothing. Surprise losses feel unfair.

If your threat is endless waves of enemies rather than a hostile world, the zombie survival guide fits better.

The systems you need

Build plan: from a baseplate to launch

First playable (one day and one night)

1. Place resource nodes. A few trees and rocks as plain parts, each with a Resource attribute (Wood, Stone) and a ProximityPrompt. On the server, a prompt trigger adds one of that material to the player's inventory and hides the node for a minute.
2. Add the crafting script below with three recipes and a simple crafting window: one button per recipe, each calling the RemoteFunction.
3. Add hunger. A server loop lowers each player's Hunger attribute every few seconds and damages them at zero; a berry bush refills it.
4. Add a day and night cycle and one night creature that wanders towards the nearest player after dark.
5. Play one full day. Time how long the first axe takes, and whether the night feels tense or just annoying.

First public test

One small island, ten recipes, a campfire, hunger and nights. Watch three numbers: time to first craft, how many players survive the first night, and how long they stay after it. If most die on night one, make the first shelter cheaper; if nobody dies, nights need more teeth.

What to add for launch

• Building with a grid: walls, floors, a door, and a check on the server that the player owns the materials and the spot is free.
• Saving for the inventory and the base, stored as plain values (item names and counts, positions as numbers).
• Two or three areas that need better tools to enter: a cave that needs a torch, a snowy hill that needs warm clothes.
• Group play: a shared campfire, shared storage, and a reason to split jobs.
• Touch controls: hitting, crafting and placing must all work on a phone.
• The Maturity and Compliance Questionnaire in the Creator Dashboard, since night creatures and combat affect the rating.

The defining mechanic: crafting the server checks

Crafting is the heart of the genre, and the easiest place to cheat: if the client says "I made a sword", the server must not believe it. In this script the client only sends the name of a recipe. The server looks the recipe up, checks the player has every material, removes them and adds the result, all in one go, so a player cannot spend the same wood twice by sending two requests at once.

ReplicatedStorage
  Craft RemoteFunction
ServerScriptService
  Crafting Script new

-- Script in ServerScriptService named Crafting.
-- The inventory lives here, on the server. Clients ask to craft a recipe by name.
local Players = game:GetService("Players")
local ReplicatedStorage = game:GetService("ReplicatedStorage")

local craft = ReplicatedStorage:WaitForChild("Craft") :: RemoteFunction

type Recipe = { needs: { [string]: number }, gives: string, amount: number }

local RECIPES: { [string]: Recipe } = table.freeze({
	Axe = { needs = { Wood = 2, Stone = 1 }, gives = "Axe", amount = 1 },
	Campfire = { needs = { Wood = 4, Stone = 2 }, gives = "Campfire", amount = 1 },
	Wall = { needs = { Wood = 6 }, gives = "Wall", amount = 1 },
})

local inventories: { [Player]: { [string]: number } } = {}

local function inventoryOf(player: Player): { [string]: number }
	local inventory = inventories[player]
	if not inventory then
		inventory = { Wood = 0, Stone = 0 }
		inventories[player] = inventory
	end
	return inventory
end

-- Other server scripts (resource nodes, food) call this to add or remove items.
local function addItem(player: Player, item: string, amount: number)
	local inventory = inventoryOf(player)
	inventory[item] = math.max(0, (inventory[item] or 0) + amount)
	player:SetAttribute("Item_" .. item, inventory[item]) -- the HUD reads these
end

craft.OnServerInvoke = function(player: Player, recipeName: unknown): (boolean, string)
	if typeof(recipeName) ~= "string" then
		return false, "Unknown recipe"
	end
	local recipe = RECIPES[recipeName]
	if not recipe then
		return false, "Unknown recipe"
	end
	local inventory = inventoryOf(player)
	for item, count in recipe.needs do
		if (inventory[item] or 0) < count then
			return false, `Need {count} {item}`
		end
	end
	-- no yields between the check and the change, so two requests cannot both pass
	for item, count in recipe.needs do
		addItem(player, item, -count)
	end
	addItem(player, recipe.gives, recipe.amount)
	return true, `Crafted {recipe.amount} {recipe.gives}`
end

Players.PlayerAdded:Connect(function(player)
	addItem(player, "Wood", 0) -- creates the inventory and the first attributes
end)
Players.PlayerRemoving:Connect(function(player)
	inventories[player] = nil -- save it first, once saving is added
end)

The crafting window calls Craft:InvokeServer("Axe") and shows the message that comes back. To give the crafted item a body, clone a Tool with the same name from ServerStorage into the player's Backpack whenever gives is a tool. Resource nodes call addItem too; put it in a ModuleScript once more than one script needs it.

Hunger works the same way: a server loop every 5 seconds lowers a Hunger attribute by 1, and at 0 calls humanoid:TakeDamage(5). Eating sends a request, the server checks the food is in the inventory, removes it and raises the attribute. The client only draws the bar.

The hard part: balance and a world that refills

Two things make or break a survival game after the first hour: how fast resources come back, and how many objects the world holds.

• Respawn timers per node. A tree that is gone for good empties a server; one that is back in 10 seconds makes wood worthless. Start with about a minute for common nodes and several minutes for rare ones, and hide the node while it regrows instead of destroying and recreating it.
• A crafting ladder. Write every recipe in one table, as the script does, and read it as a tree: what does each item need, and what does it unlock? Each tier should take a little longer to reach than the one before.
• Hunger in minutes. Decide how long a full bar lasts (for example, one in-game day), then set the drain from that. Players should eat two or three times a day, not every minute.
• Fewer, bigger objects. Hundreds of trees made of many small parts and player bases with thousands of walls slow servers down. Use simple shapes, cap how many pieces one player can place, and turn on instance streaming once the map is large.
• Night threats that scale. More creatures for bigger groups, and fewer for a player alone, so solo players are not overrun.

Monetization that fits a survival game

Survival games are about earning your way, so selling the result of the grind removes the game. Sell comfort, looks and space instead:

A developer product must be granted through MarketplaceService.ProcessReceipt so a purchase is never lost; the game pass guide covers pass checks and prompts. Changing the private server price cancels every active private server subscription, and a subscription must keep its benefits for the full term. Roblox also pays creators through Creator Rewards, which replaced engagement-based payouts on 24 July 2025. Rewarded video ads, where your game qualifies, must reward a developer product and cannot be random: a free revive fits.

What brings survivors back

• A saved base. The thing a player built is the strongest reason to return.
• Goals past survival. A boss, a map to explore, a boat to finish. Without them, day five feels like day one.
• Days survived. Show the count on screen and on a leaderboard. Beating your best is free content.
• Seasons and events. A blood moon night, a winter update with new recipes, a limited cosmetic.
• Daily rewards. A small daily bundle of materials (daily rewards).

Build a survival game with RoCode

RoCode is an independent AI agent for Roblox Studio. You describe what you want in a web chat, and its free Studio plugin writes the Luau and creates the scripts, parts and UI in the place you have open. For a survival game it works in rounds: first nodes and crafting, then hunger and nights, then building and saving.

Build this in Studio ↗

It cannot make custom meshes or animations, publish the game, or tell you whether your hunger drain feels right: you still play the nights yourself. Free credits every day, no card needed. How RoCode builds a game.

Questions

Sources and further reading

• Roblox Creator Docs: RemoteFunction. OnServerInvoke and InvokeServer
• Roblox Creator Docs: ProximityPrompt
• Roblox Creator Docs: Lighting. ClockTime for day and night
• Roblox Creator Docs: data stores
• Roblox Creator Docs: Developer products
• Roblox Creator Docs: Subscriptions
• Roblox Creator Docs: Creator Rewards
• RoCode guide: Inventory system
• RoCode guide: Day and night cycle

How the code was checked: every script on this page passes Luau's strict type checker against Roblox's API definitions (luau-lsp, 4 November 2026). A type check catches misspelt APIs and wrong types, not game logic, so playtest in Studio before you publish.