Did you know? In 2023, over 3,000 new indie games were released each month on platforms like Steam and Itch.io. But behind many of those games, there weren’t big teams or massive budgets; just a few smart developers using the right tools to save time.
One of the biggest game-changers today is the rise of auto-generation tools. Thanks to AI and procedural technology, it’s now possible to create full game environments, characters, items, and scenery in minutes, with little to no design skills required.
This article ranks the best tools available right now for generating 2D and 3D assets for simple games, and it gives you all the details you need to choose the right one for your project. We also share our favourite tool. So let’s jump in!
Why use auto-generation tools?
Before jumping in, let’s be clear: you don’t need to be an artist or coder to build a small game anymore. These AI tools help you:
- Save hours of design work
- Generate unique assets every time
- Focus on gameplay and mechanics
- Prototype faster without hiring a full team
Now let’s dive into the best options available right now.
1. Scenario.gg
Best for: Character sprites, game objects, and concept art
Platform: Web
Price: Free plan available, premium from $20/month
🔗 Visit Scenario.gg
Scenario lets you train an AI with your own art style and then generate unlimited assets in that same style. Perfect for 2D games, pixel art, or stylized mobile games.
Key Features:
- Upload your art → the AI learns your style
- Generate consistent characters, weapons, and props
- Supports exporting transparent PNGs
- Community models and prebuilt styles available
Great if you want to keep the same look across your entire game but don’t have time to draw every detail yourself.
2. World Creator
Best for: 3D terrain, landscapes, open-world levels
Platform: Windows/macOS
Price: Starts at $149 (one-time license)
🔗 Visit World Creator
World Creator is a professional terrain creation tool, but it’s surprisingly friendly for beginners. You can auto-generate mountains, rivers, deserts, and more in just a few clicks.
Key Features:
- Real-time 3D preview and editing
- Biome blending, erosion simulation, and weather effects
- Export to Unity, Unreal, or other engines
- Compatible with heightmaps and external textures
Ideal for fantasy, survival, or exploration games that need immersive landscapes.
3. Instant Meshes
Best for: Converting high-poly 3D models into game-ready assets
Platform: Windows/macOS/Linux
Price: Free (Open Source)
🔗 Visit Instant Meshes
Instant Meshes takes detailed 3D scans or models and turns them into simpler, lighter versions that your game engine can handle smoothly. Perfect for optimizing environments and characters without losing quality.
Key Features:
- Automatic and manual retopology tools
- Simple UI with fast processing
- Outputs OBJ and other common formats
- Works well with 3D scans and photogrammetry
Great tool if you want to keep realistic assets but make them run fast in-game.
4. Synty Studios – Low-Poly Asset Packs
Best for: Drag-and-drop low-poly 3D assets for Unity or Unreal
Platform: Unity/Unreal marketplaces
Price: $9–$99 per pack
🔗 Visit Synty Store
Although not auto-generators per se, Synty’s packs include thousands of ready-made buildings, characters, and items that you can easily combine into custom environments.
Key Features:
- Stylized, clean low-poly look
- Massive themed packs (Fantasy, Sci-Fi, City, Farm, etc.)
- Optimized for mobile and desktop
- Fast to build full scenes with minimal effort
A go-to resource if you want polished results fast without modeling anything yourself.
5. Blockade Labs – Skybox AI
Best for: Generating 360° sky environments with text
Platform: Web
Price: Free (beta)
🔗 Try Blockade Labs
Just type a few words — like “alien sunset with purple lightning” — and Blockade Labs instantly creates a full 360° skybox for your game. It’s AI magic, and it saves hours of environment design.
Key Features:
- Skybox generation from text prompts
- Download as 6-image cube maps or equirectangular images
- Customize lighting, mood, and colors
- Perfect for background scenery in RPGs or shooters
Pairs well with tools like Unity or Three.js.
Our favorite: Scenario.gg 🎉
Among all these, Scenario.gg stands out as our favorite. Why?
Because it gives everyone — even total beginners — the power to generate high-quality game assets that feel personalized and coherent.
Imagine telling the AI: “Make me a knight, a dragon, and a castle, all in the same art style” — and getting everything in minutes. No drawing. No modeling. Just results.
It’s also evolving fast, with support for game-specific formats and community sharing. If you’re working solo or as a small team, this is a game-changer.
So go ahead — try one, or try them all. And don’t forget to share what you build!