How to Build a Theft-Based Game on Roblox

Follow this step-by-step guide to create a “grab-and-secure” experience—think Steal a Fish or Steal a BrainRot. We’ll cover setup, scripting, UI, data, and more.

1. Project Setup

  • Roblox Studio: Install latest Studio and open a new Baseplate.
  • Folder Layout: Create Scripts, Modules, UI, Models.
  • Spawn & Delivery Parts: Add placeholder parts named SpawnPoint and DeliveryZone.

2. Spawning & Rarity

Use a ModuleScript to manage timed spawns with weight-based rarities.

Spawner Module
-- Modules/Spawner.lua
local M = {}
function M.spawn(items, points, delay)
  spawn(function()
    while true do
      wait(delay)
      local item = items[math.random(#items)]:Clone()
      item.PrimaryPart.CFrame = points[math.random(#points)].CFrame
      item.Parent = workspace
    end
  end)
end
return M

3. Player Interaction

Enable pickup and shield mechanics on the client side.

Pickup & Shield
-- StarterPlayerScripts/Interact.lua
local player = game.Players.LocalPlayer
local mouse = player:GetMouse()

-- Pickup
mouse.Button1Down:Connect(function()
  local t = mouse.Target
  if t and t:FindFirstChild("CollectibleTag") then
    t.CFrame = player.Character.HumanoidRootPart.CFrame
  end
end)

-- Shield
local btn = player.PlayerGui:WaitForChild("ShieldBtn")
btn.MouseButton1Click:Connect(function()
  local ff = Instance.new("ForceField", player.Character)
  wait(10)
  ff:Destroy()
end)

4. Delivery & Rewards

  • Touched script on DeliveryZone to award currency.
  • Track with leaderstats in PlayerAdded event.
Delivery & Stats Setup
-- ServerScriptService/Delivery.lua
local zone = workspace.DeliveryZone
zone.Touched:Connect(function(part)
  local plr = game.Players:GetPlayerFromCharacter(part.Parent)
  if plr then
    plr.leaderstats.Cash.Value += part:GetAttribute("Value") or 0
    part:Destroy()
  end
end)

-- Leaderstats
game.Players.PlayerAdded:Connect(function(p)
  local stats = Instance.new("Folder", p)
  stats.Name = "leaderstats"
  local cash = Instance.new("IntValue", stats)
  cash.Name = "Cash"
  cash.Value = 0
end)

5. Upgrades & Data Persistence

  • Build a Shop UI with ScreenGui + Buttons for slots, speed, rebirth.
  • Save with DataStoreService on PlayerRemoving and load on PlayerAdded.
DataStore Template
-- ServerScriptService/DataManager.lua
local ds = game:GetService("DataStoreService"):GetDataStore("PlayerData")
game.Players.PlayerAdded:Connect(function(p)
  local key = "User_"..p.UserId
  local data = ds:GetAsync(key) or {Cash=0,Rebirths=0}
  p.leaderstats.Cash.Value = data.Cash
  p:SetAttribute("Rebirths", data.Rebirths)
end)
game.Players.PlayerRemoving:Connect(function(p)
  local key = "User_"..p.UserId
  ds:SetAsync(key,{Cash=p.leaderstats.Cash.Value,Rebirths=p:GetAttribute("Rebirths")})
end)

6. UI & UX Tips

  • Use UIScale and UIAspectRatioConstraint for true responsiveness.
  • High-contrast colors, clear icons, and large touch targets improve accessibility.

7. Testing & Launch

  • Test solo and in a team server for multiplayer issues.
  • Use private beta servers to gather feedback.
  • Publish with an SEO-optimized title, description, and eye-catching thumbnail.

8. Community & Marketing

  • Embed a YouTube devlog or gameplay trailer.
  • Promote on Discord, Reddit, and Roblox groups.
  • Encourage players to share scripts, screenshots, and tips.

FAQs

How do I handle data saving?

Use DataStoreService: save on PlayerRemoving and load on PlayerAdded.

Where to find free Roblox assets?

Browse the Creator Marketplace for free models, meshes, and audio.

Scroll to Top