Lemonade AI (lemonade.gg) vs PromptBlox for Roblox games

Short answer: Lemonade and PromptBlox both turn written ideas into Roblox game content, but they work in different places. Lemonade is an AI tool that works through a plugin in Roblox Studio. PromptBlox builds the game in your web browser and gives you a Roblox place file (.rbxlx) to open in Studio when you want to playtest and publish.

• Lemonade may suit you if you already have Roblox Studio installed and want an AI tool that works alongside you there.
• PromptBlox may suit you if you want to start a new game from a description in a browser, watch a 3D preview while it builds, and keep saved versions of each change before you open Studio.

Lemonade and PromptBlox side by side

Competitor details come from Lemonade’s own website, terms of service and Roblox Creator Store listing, listed in the sources below. We did not test Lemonade for this article.

Is Lemonade.gg free?

The Lemonade AI plugin, published by Lemonade Labs, is free to install from the Roblox Creator Store. Lemonade’s terms of service describe a paid subscription, billed monthly, that increases prompt limits. We could not find prices on Lemonade’s public pages: lemonade.gg/pricing opens the sign-in page, so check the current limits and prices after you sign in with Roblox.

PromptBlox publishes its prices on the pricing page. The Free plan includes Light builds with a small weekly usage allowance, chat edits, saved versions and .rbxlx export. Paid plans are Lite, Pro, Max, Ultra and Ultra+, starting at $9.99 a month for Lite. Higher plans add a larger weekly allowance and higher build levels: Medium with Pro, High with Max, and Ultra with Ultra and Ultra+. Builds and edits draw on the allowance according to the build level and the size of the request, so there is no fixed price per game.

How building a game in PromptBlox works

1. Describe the game. In Create, write the setting, what players do and how they win, or add a reference picture. Pick a build level your plan includes.
2. Follow the build. PromptBlox makes one concept image as the visual reference, then builds the world and its scripts while you watch the Activity feed and a 3D preview. You can send notes while it works.
3. Refine in chat. Ask for a specific change, such as “Make the checkpoint easier to see and keep the rest of the course.” Each saved edit appears in History.
4. Export and playtest. Download the .rbxlx file, open it in Roblox Studio and playtest the whole loop, including falling and restarting, before you publish.

The first build is a starting point, not a guaranteed finished game, and build time depends on the level and scope. The PromptBlox v2.0 release notes describe the build levels, Game Graph and game import in more detail.

Working with an existing game

Lemonade’s terms say it acts between Roblox Studio and its own service, so its changes happen through Studio. In PromptBlox you can import an existing .rbxlx place, up to 25 MB, as a new project and refine it in chat. Keep your original file and check the result in Studio, especially custom assets and scripts. Edits you later make by hand in Studio do not sync back into PromptBlox, so keep track of which file you tested.

Sources

Checked on September 25, 2026.

• Lemonade homepage and Lemonade sign-in page
• Lemonade terms of service (last updated September 25, 2026)
• Lemonade AI plugin on the Roblox Creator Store
• Roblox Studio setup requirements
• PromptBlox pricing, terms and v2.0 release notes

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