How to Add Weapons, Pets, and Vehicles to Any Roblox Game
Generate custom game items with AI, then import them into any Roblox game — new or existing.
Generate Items with AI
Describe the items you want
In PromptBlox, describe the items you want to add to your game. Be specific about what the item does and how it looks:
- Weapons:"A glowing plasma sword with neon blue blade"
- Pets:"A tiny dragon that follows the player and breathes fire"
- Vehicles:"A hoverboard with neon underglow"
- NPCs:"A shopkeeper NPC that sells potions"
Download as .rbxm file
Once PromptBlox generates your item, click Download. Items save as .rbxm (Roblox Model) files. This format lets you import individual models into any existing game — you don't need to replace your whole game file.
Import Into Your Game
Import into Roblox Studio
Open your existing game in Roblox Studio, then:
- Drag the
.rbxmfile from your file explorer directly into the Studio viewport - Or go to File → Import Model and select the file
- The model appears in your game — move it wherever you want
Tip:You can import items into any Roblox game, not just PromptBlox games. Got a game you built from scratch? Drop AI-generated items right in.
Where Items Go in the Game Hierarchy
Place items correctly
Where you put items in the Explorer panel determines how they work in-game:
Weapons → StarterPack
Move weapon tools into StarterPack. Every player spawns with the weapon automatically. They can equip it from their hotbar.
Pets → Workspace (with scripts)
Pets need a follow script to trail the player. Place the pet model in ReplicatedStorage and clone it to each player on spawn using a server script.
Vehicles → Workspace
Place vehicle models directly in Workspace. Add a VehicleSeat so players can sit in and drive them.
NPCs → Workspace
NPCs go in Workspace. They need a Humanoid inside them to have health and walk. Add a ProximityPrompt if you want players to interact with them.
Item Types You Can Generate
Melee Weapons
Swords, axes, hammers, staffs, daggers
Ranged Weapons
Bows, guns, wands, cannons, slingshots
Pets
Dragons, cats, robots, spirits, slimes
Vehicles
Cars, hoverboards, boats, helicopters, mounts
NPCs
Shopkeepers, quest givers, enemies, guards
Consumables
Potions, food, power-ups, scrolls
FAQ
Can I add items to games I didn't make with PromptBlox?
Yes. The .rbxm format is universal — import it into any Roblox Studio project, whether you made it with PromptBlox, built it from scratch, or downloaded a template.
How many items can I add to one game?
There's no hard limit from PromptBlox. Roblox Studio can handle thousands of models, but more items means longer load times for players. Keep your game under 100MB for the best experience.
Do generated weapons have damage scripts?
Yes. Weapons generated by PromptBlox include basic damage scripts that work out of the box. You can customize damage values, effects, and cooldowns in the script properties.
Can I sell AI-generated items in my game?
Yes. Once items are in your game, you can gate them behind game passes or developer products. Players pay Robux to unlock the item, and you earn a share of the revenue.
Generate your first item
Start Generating