Add Items and Mechanics to Your Roblox Game

Choose the right starting point#

For an item that belongs in your existing game, open that saved project and request a refinement. Explain where it goes and how it connects to the current loop. This gives the change context about the surrounding world.

For a new object, describe it and what it should do, either in your first build request or in chat on your saved project. For example: a sword players can pick up from a rack, a pet that follows its owner, or a car players can drive. Then export and check it in Roblox Studio.

Describe the action as well as the shape#

A pickaxe needs more than a handle and a head if players are meant to mine with it. Explain how it is equipped, what it can hit, how damage appears, and where collected resources go.

A vehicle needs an entry interaction, working controls, and a way to recover when it gets stuck. A pet needs a defined behavior, such as following the owner without blocking movement. A decorative prop may need none of those systems.

The genre guides describe the items each kind of game tends to need, for example the racing, RPG, and fighting game pages.

Add a usable field pickaxe to the existing mine. Hold it by the lower handle with the head facing the mining target. Let players equip it and mine the marked crystal deposits with keyboard or touch controls.

Show impact feedback and a breaking effect when a deposit is depleted. Move the collected crystal toward the player and add it to the inventory only once. Show when the bag is full. Preserve the current tunnels, quest route, and resource values.

Bring a standalone model into Roblox Studio#

This section is for items you saved before standalone item creation was turned off. Use the export offered for that item. A saved item exports as an .rbxm model. Some mesh-based exports include a ZIP with a model and a .glb mesh that requires an additional import step. Follow the instructions included with the export.

Import into a copy of your place and inspect the result before merging it into the main game. A model file is not the same as a whole .rbxlx place, and a mesh by itself is not a working game mechanic.

Check scale and fit#

Place the object next to the character and its intended surroundings. Check that a held item sits in the hand, a vehicle fits the road, and a door leaves enough clearance. Inspect orientation from more than one angle.

Keep decorative surfaces from overlapping the same visible plane. Test collisions and make sure added objects do not block existing paths or objectives.

Verify the interaction#

Test the item in the full game loop. Equip and unequip a tool, repeat an interaction, fill an inventory, or enter and exit a vehicle. Try the intended touch controls and check that rewards cannot be collected repeatedly by accident.

If the item depends on other systems, request that connection explicitly. For example, an upgraded pickaxe should affect mining behavior as well as change appearance.

Keep a copy before integration and use the refinement guide when the result needs repair. For avatar items intended for sale outside your game, read the separate Marketplace guide.