Roblox Studio alternative for mobile: what works on a phone

To make a game on a phone, use Roblox Build, GDevelop, Castle or Roam. Roblox Studio itself runs only on Windows and Mac.

Quick answer

The phone options are Roblox Build, an AI tab in the Roblox app that is still rolling out by region; GDevelop and Castle, game editors on a phone; and Roam, an iPhone app that turns a typed idea into a playable game. Roblox Studio itself is a free Windows and Mac app, with no mobile version.

Updated Nov 4, 2026. Roam is our app, and the Roam team wrote this comparison. Roam is free to download and play on iPhone, and making works without a subscription; optional Spark and Reality plans and credit packs add more creation. Android: pre-register on Google Play.

Side by side

Roblox Studio vs phone options (checked Nov 4, 2026)
	Roblox Studio	Roblox Build	GDevelop	Castle	Roam
Runs on	Windows, Mac	Build tab in the Roblox mobile app, supported regions only	iPhone, Android, web, Windows, Mac, Linux	iPhone, Android	iPhone and iPad (App Store); Android: pre-register on Google Play
How you make a game	Full 3D editor and Luau scripts	Type a prompt, refine it in chat	No-code editor with templates and an AI helper	Editor with tools for art, physics, logic, music and sound	Describe it in a sentence or start from a photo, change it by talking
Free to start	Yes, free app	Free prompts every day, more credits with Robux	Free plan with 40 AI credits a month	Free; creating and sharing never needs a purchase	Free to download and play; making works without a subscription. Optional Spark and Reality plans and credit packs add more creation
Play with friends	Roblox games are multiplayer by default	Publish to Roblox in one tap; private playtest links listed as coming soon	Free plan: 1 lobby, up to 4 players	Parties and multiplayer	Solo or with friends; friends can be in the game
Where your game lives	Roblox	Roblox; Build games are set for players 16+ by default	gd.games, or store exports (iOS on paid plans)	Castle's community feed	In the Roam app on iPhone

From each product's own docs, plan pages and store listings, checked Nov 4, 2026. Roam is not affiliated with Roblox Corporation. Roam does not publish its free limits.

Which one to pick

Pick Roblox Build if

You want your game on Roblox itself, you are 9 or older with a verified age, and Build has reached your region. Simple 2D games like clickers and side-scrollers suit it best for now.

Pick GDevelop if

You want to learn how games are built, place every piece yourself, and maybe publish to app stores later. It runs on phones and computers.

Pick Castle if

You like drawing your own art and building from templates, with a big community that plays and remixes what you post.

Pick Roam if

You want the game, not the editor. Describe it or use a photo, play it on your iPhone, and change it by saying what to change. Friends can be in it.

Stay with Roblox Studio if

You have a Windows PC or Mac and want a full 3D Roblox game with your own scripts and assets.

Apps that make a game on your phone today

These three are on the US App Store today, with no regional rollout to wait for.

GDevelop An open-source, no-code engine with apps for iPhone and Android, plus web and desktop versions. You build from templates and events, and an AI helper can work with you step by step.
Castle A make-and-play app with an editor for art, physics, logic, music and sound, and a feed of community games. It has 10M+ installs on Google Play (checked Nov 4, 2026).
Roam An iPhone app where you describe a game in a sentence, or start from a photo, and it comes back playable. It is free to download and play, and making works without a subscription; optional Spark and Reality plans and credit packs add more creation. No code, no engine, no project files. You keep ownership of what you make, and Roam gets a license to run, improve and showcase it.

Roblox Build, the phone option inside Roblox

Build is a tab in the Roblox mobile app: you type what you want, get a basic playable game and refine it by chatting. It is for users 9 and older who have completed an age check, and it is rolling out by region. See how to use Roblox Build for the steps.

Studio is Windows and Mac only

Roblox's setup guide lists Windows 10 or macOS 10.14 as the minimum, and Studio is free at create.roblox.com. A "Roblox Studio APK" or iPad download on another site is not from Roblox. Device questions are answered in full on our Roblox Studio for iPhone page.

Can you make a Roblox-style game without Studio?

Yes, in style, but not on Roblox. Obby, tycoon and survival are genres anyone can make. In Roam you can type "neon obby, disappearing blocks, 3 lives, friends can join" and play it the same day.

That game lives in Roam, and Roam is not affiliated with Roblox. To publish on Roblox, use Build where it is live, or Studio on a computer.

Make a Roblox-style game on your iPhone

Roam is free to download on iPhone. Describe the game, play it, and change it with another sentence.

Try: "obby on a floating sky island, disappearing blocks, 3 lives, my friends race me to the top"

Questions people ask

What is the best Roblox Studio alternative for mobile?

It depends on what you want. GDevelop and Castle give you a full editor on a phone, Roblox Build keeps your game on Roblox where it is live, and Roam fits if you want to describe a game and play it right away.

Is Roblox Studio free on mobile?

Studio is free, but there is no mobile version. On a phone, Roblox Build gives a set number of free prompts each day and sells more credits for Robux, in the regions where it is live.

What are apps like Roblox Studio?

On a phone, GDevelop and Castle let you build a game piece by piece. Roam fits if you would rather describe a game and play it right away.

Do Roam games run on Roblox?

No. A Roam game lives in the Roam app, and Roam is not affiliated with Roblox. To publish on Roblox, use Build where it is live, or Studio on a computer.

Sources, checked Nov 4, 2026

Product names belong to their owners. Roam is not affiliated with them. Facts change: check each product's own site before you choose.