Hammermind
Game-ready pixel art and audio files from a single prompt
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What is Hammermind?
Hammermind is an AI-powered tool that generates game-ready 2D art and audio from a single text prompt. It creates pixel-art characters, enemy packs, sprite sheets, icons, HUD kits, tilesets, and parallax backgrounds, along with voice lines, sound effects, ambience, and music. The tool exports assets engine-ready for Unity, Godot, and GameMaker, making it ideal for game developers who need quick, consistent art and audio without hiring artists or sound designers.
Key features include MCP server integration for direct generation from code editors (Claude Code, Cursor, VS Code, Claude Desktop), a clean REST API for build pipeline integration, twelve style presets for locked-in visual consistency, seed-locked consistency across character casts, and automatic background removal on every generation producing transparent PNGs. Audio runs on self-hosted open-weight models and is commercially licensable, meaning it can ship in your game alongside the art.
Hammermind is designed for indie game developers, solo creators, small game studios, and prototyping teams who need fast, affordable game assets. It supports generating characters (heroes, NPCs, creatures), sprite sheets with multiple action poses, icons readable at 32px, tileable tilesets for full-level building, layered backgrounds for side-scrollers, and 4/8-way rotations for top-down or isometric controllers.
The pay-as-you-go pricing model has no subscriptions—users top up from $10 and pay per asset with art from $0.20 and audio from $0.08. Failed generations are refunded automatically, and there's one flat price per asset type regardless of which model runs under the hood.
Hammermind pricing
Pricing model: Freemium
Pay as you go with no subscription. Top up from $10, then pay per asset: art from $0.20 per asset, audio from $0.08 per asset. One flat price per asset type regardless of which model runs under the hood. Failed generations are refunded automatically. No free tier available.
Hammermind pros
- Pay as you go with no subscription required
- Art assets start from only $0.20 per asset
- Audio assets start from only $0.08 per asset
- Minimum top-up is just $10
- MCP server integration for Claude Code and other editors
- Clean REST API for build pipeline integration
- Exports engine-ready for Unity, Godot, and GameMaker
- Twelve style presets for locked-in visual consistency
- Seed-locked consistency across entire character casts
- Automatic background removal on every generation
- Generates transparent PNGs with clean edges
- Creates consistent sprite sheets with single calls
- Audio is commercially licensable for game use
- Audio runs on self-hosted open-weight models
- Failed generations are refunded automatically
- One flat price per asset type regardless of model
- Works with VS Code, Cursor, and Claude Desktop
- Generates whole action sets in one consistent sheet
- Creates 4/8-way rotations for top-down controllers
- Icons readable at tiny 32px sizes
Hammermind cons
- No free tier available—must top up minimum $10
- Only 12 style presets available
- Pixel-art style focused, not suitable for all game types
- Audio models may have less customization than dedicated tools
- No subscription option for high-volume users
- API requires bearer token authentication setup
- MCP integration limited to specific clients
- Style consistency depends on proper prompt formatting
Frequently asked questions about Hammermind
What game engines does Hammermind support?
Hammermind exports assets engine-ready for Unity, Godot, and GameMaker. The generated sprites, sprite sheets, tilesets, and backgrounds are formatted and sized for direct use in these engines.
How do I integrate Hammermind with my code editor?
Add Hammermind as an MCP server using the command: claude mcp add hammermind --transport http https://api.hammermind.com/mcp. It works with Claude Code, Cursor, VS Code, Claude Desktop, and any MCP client.
Can I use Hammermind audio in my commercial game?
Yes. Audio runs on self-hosted open-weight models and is commercially licensable, so it ships in your game alongside the art without licensing restrictions.
What art styles does Hammermind support?
Hammermind offers twelve style presets focused on pixel-art, including styles like pixel-16. The tool generates locked-in style assets from text prompts.
How does Hammermind ensure consistency across characters?
Hammermind uses seed-locked consistency across a cast, meaning the same character style is maintained across heroes, NPCs, and creatures generated from related prompts.
What happens if a generation fails?
Failed generations are refunded automatically. You don't pay for assets that don't generate successfully.
Can I generate sprite sheets with multiple poses?
Yes. One call draws a whole action set or a 4/8-way turnaround as a single consistent sheet with the same character throughout, ready to slice for Unity, Godot, or GameMaker.
Does Hammermind remove backgrounds from generated art?
Yes. Background removal runs on every generation, producing clean transparent PNGs that are ready for immediate use in games.
What audio types can I generate with Hammermind?
You can generate announcer callouts, NPC voice lines, sound effects, looping ambience beds, and victory/defeat music stingers—all from a text prompt.
How do I use the Hammermind REST API?
hit the REST API directly with curl or your preferred HTTP client: curl -X POST https://api.hammermind.com/v1/sprites with Authorization: Bearer $HAMMERMIND_API_KEY header and a JSON body containing prompt and style parameters.