AI game-dev assistant

No idea? No problem. Build the next playable version with GUMO.

GUMO is a desktop studio for fast game iteration: ideation, prompts, true pixel art, 2D animation, assets, audio, and an agent that can work inside Unity, Godot, or Roblox.

Built for prototyping speed Free model lanes when available Your assets stay local Unity, Godot, Roblox
10xDesigned to speed up iteration and prototyping.
3Engine modes: Unity, Godot, and Roblox.
0GUMO does not sell, resell, or use your content for GUMO data products.
1One app for ideation, studios, and agent wiring.
GUMO desktop app running in Unity mode with command bridge, live preview, and agent chat
scrollfollow the build path
No idea, no problem

Start with a blank page. Leave with a production plan.

The workflow is built as a hierarchy: ideation first, then prompts and blueprints, then the right studio for the asset, then engine handoff, then the agent wires it into your project.

01

Generate or polish the idea.

Use the Ideation Engine to create a new concept from questions, or polish an existing idea into a structured game design direction.

GUMO Ideation Engine with polish and design modes
02

Get prompts, blueprints, and production steps.

GUMO breaks the idea into prompts the agent can execute: systems, scenes, assets, acceptance checks, and the next focused task.

GUMO plan and blueprint interface
03

Create the asset in the right studio.

Route the prompt into 2D, 3D, pixel, material, tile, or sound studios. The goal is not a pretty dead asset, it is something the game can use.

GUMO 3D studio interface for game asset generation
04

Make real pixel motion when the game needs it.

A reference image can become a true pixel-art sprite sheet, ready to edit in Pixel Studio and hand to the engine.

GUMO true pixel-art sprite sheet generated from a character reference
05

Send everything to your engine.

Choose Unity, Godot, or Roblox. Give the agent the blueprint, the asset, and the next instruction. It wires the work into the project loop.

GUMO Unity mode ready to wire assets into a project
True 2D animation

Reference image to game-ready motion, without fake pixel blur.

GUMO turns character references into animated sprite sheets that remain true pixel art: clean grids, locked palettes, editable frames, and engine-ready output.

One assistant, three engines

Scroll from Unity to Godot to Roblox.

GUMO supports three different game creation environments with a click of a button. Each mode changes the agent context, bridge workflow, terminology, and guardrails.

GUMO Unity mode interface
Unity mode

Build Unity systems.

Inspect scenes, patch C# scripts, read console state, capture game view frames, and iterate inside the Unity Editor loop.

GUMO Godot mode interface
Godot mode

Build Godot scenes.

Use Godot-native language, project structure, node vocabulary, and live editor checks through the GUMO bridge addon.

GUMO Roblox mode interface
Roblox mode

Build Roblox games.

Drive Roblox Studio through MCP tools, reason about Luau, services, Instances, client-server boundaries, and playtest-ready scripts.

Studios inside the assistant

A production suite, not a prompt box.

GUMO brings ideation, image, 2D, 3D, pixel, tile, material, and sound workflows into the same desktop surface as the agent. The studios generate assets the agent can actually use.

GUMO Pixel Forge converting raster art into true pixel art

Pixelization Engine

Recover a true grid, lock a palette, and downscale art into real editable pixels instead of a blurry raster imitation.

GUMO Pixel Editor Studio interface

Pixel Editor Studio

Edit the generated frames directly, then keep the same asset pipeline alive.

GUMO Tile Studio interface

Tile Studio

Grow tile sets from an existing tile, create neighboring pieces, and keep seams under control.

GUMO Material Studio interface

Material Studio

Generate game-ready surfaces and route them into pixel or 3D workflows when the scene needs texture.

GUMO Sound Studio interface

Sound Studio

Add sound effects, music, and audio ideas to prototypes that would otherwise stay silent.

GUMO true pixel sprite sheet output

Sprite sheets

Generate animated frames, export metadata, and send motion into the engine.

Models without lock-in

Use strong paid models, or start with free OpenRouter lanes when available.

GUMO does not hide a token bundle inside the subscription. Bring the providers you trust, route through OpenRouter, and pick the model that matches the task.

Free model startsOpenRouter free models can help users learn, prototype, and code without buying a premium API key first.
Better model, better resultFor production-quality refactors and long planning, stronger models still matter.
Clear controlThe selected provider and model are visible in the app, not buried in a black box.
GUMO free OpenRouter model selection screen
GUMO provider configuration screen
Private by design

Your game assets stay under your control.

GUMO is built for creators working with unfinished ideas, reference art, game files, and private projects. We do not sell, resell, or package your work as a GUMO data product.

GUMO does not use your work as its data.

Your images, sprites, project files, prompts, and chats are not sold, resold, or repurposed by GUMO.

Provider choices stay explicit.

Your work stays on your computer unless you intentionally send it to a model, generation, or storage provider you configured.

Small anonymous moderation only.

We use minimal anonymous app-usage moderation tied to user IDs to reduce abuse and bot attacks, not to read your creative work.

Subscription

One GUMO Pro plan. Pick monthly or yearly.

The subscription unlocks the desktop IDE, agent workflows, engine modes, and studios. Your model provider spend stays separate and under your control.

Yearly = 2 months free
Monthly
$9.99$4.99/mo
GUMO ProFull access, billed monthly. Cancel anytime.
  • Unity, Godot, and Roblox assistant modes
  • Ideation, 2D, 3D, pixel, tile, material, and sound studios
  • True pixel-art and sprite-sheet workflows
  • Bring your own model provider keys
Start with 3 days free.

Every new account gets full GUMO Pro access for 3 days, no credit card to begin.

Your API bill is separate.

Use OpenAI, Anthropic, Google, OpenRouter, fal.ai, Meshy, or other configured providers.

Launch pricing is temporary.

The crossed-out prices show planned post-beta pricing before the launch discount.

Before checkout

Fast iteration, honest limits, private work.

GUMO is not advertised as a one-click finished game machine. It is an assistant for faster iteration, stronger prototypes, and production work when the user knows how to guide it with the right model and checks.

Does GUMO build a full production game in one prompt?

No. The best workflow is incremental: plan a focused improvement, let GUMO implement it, verify in the engine, then continue. Used well, it can support production-ready work, but it is still an assistant.

Which engines does it support?

GUMO has modes for Unity, Godot, and Roblox. Each mode changes the agent instructions and bridge expectations to match that environment.

How do I get API keys?

If you do not know how to get API keys for fal.ai or OpenRouter, open the chat widget at the bottom-right corner of this screen and ask us. We will walk you through the setup step by step: where to create the key, where to paste it in GUMO, and how to test it.

Can I code without paying for a premium model key?

You can start with free OpenRouter model lanes when they are available. For difficult tasks, long context, and production refactors, stronger paid models usually perform better.

What makes the pixel-art pipeline different?

GUMO focuses on true pixel output: recovered grids, flattened cells, controlled palettes, editable frames, and sprite sheets that can be sent to the editor.

What happens to my assets and chats?

GUMO does not sell, resell, or repurpose your assets, prompts, project files, or chats as GUMO data. Provider-side handling depends on the external model or generation service you choose. Anonymous moderation is limited to app-usage safety and abuse prevention.

How do I download bridges and connect Roblox MCP?

Download the Unity Bridge package installer or the Godot Bridge addon zip from the Bridges menu. For Roblox, open Roblox Studio, open Assistant, use the three-dot menu on a new chat, choose Manage MCP Servers, then enable Studio as an MCP server.

Gumo engineering

Open your engine. Give GUMO one real task. Watch the iteration loop move.

Start with a free 3-day trial, connect your preferred provider, choose Unity, Godot, or Roblox, then ask for the next playable improvement.