Retro Diffusion

What is Retro Diffusion?

Retro Diffusion is a web-based AI generator that produces true pixel art on a 1× grid for game development. It outputs characters, tilesets, animations, and low-poly 3D models across 84 styles using eight distinct models. New accounts receive free daily usage without a credit card, while ongoing generation operates on a prepaid balance starting at $5.

What are the features of Retro Diffusion?

• True pixel grid output

  Generates images at native resolutions from 16×16 to 384×384 pixels with limited palettes, supporting lossless nearest-neighbor upscaling and transparent backgrounds.
• Specialized generation models

  Includes RD Pro for finished art, RD Fast for drafts, RD Mini for tiny sprites, dedicated models for tilesets and animations, and Low-Poly 3D for pixel-textured models.
• Single-image animation (Advanced Animations)

  Accepts one still image of a character or scene and outputs a looping sprite sheet and GIF with preset or custom-described actions.
• Custom style training (My Styles)

  Trains a generation style from a small set of user-provided reference images, compatible with all RD Pro settings.
• Canvas editing tools

  Nine built-in tools for inpainting, outpainting, background removal, palette conversion, seam tiling, and other edits directly on the canvas.
• Developer API and MCP server

  Provides REST API access to all models with asynchronous jobs, cost checks, and a hosted MCP server for integration with AI coding tools.

What are the use cases of Retro Diffusion?

• Matching an existing game's visual style

  Developers upload reference images to train a custom style or pass up to nine references directly to RD Pro to generate consistent new assets.
• Animating static character art

  Game artists input a single still image into Advanced Animations to produce a looping sprite sheet with walking, attacking, or custom actions.
• Correcting non-grid-aligned AI images

  Users apply the Pixel Art Fixer to snap soft or filtered AI-generated images onto a true pixel grid and clean the color palette.

Retro Diffusion Pricing Information:

• Free daily usage

  Available to new accounts without a credit card; provides enough credits for approximately three RD Pro images initially, replenishing daily.
• Pixel Art Fixer guest access

  Free in the browser without signup; bulk processing via the API costs $0.002 per image.
• RD Fast

  $0.03 per image.
• RD Mini

  $0.06 per image.
• Tilesets model

  From $0.06 per generation.
• Animations model

  From $0.07 per generation.
• Low-Poly 3D Lite models

  $0.10 per generation for fast drafts.
• Advanced Animations

  From $0.10 per animation; most moves are $0.14, with Subtle Motion and Custom Action priced at $0.25.
• RD Pro and My Styles

  $0.18 per image.
• Low-Poly 3D full models

  From $0.25 per generation for sizes from 16³ up to 256³.
• Low-Poly 3D whole scenes

  $4 per generation for kits of pieces designed to fit together.
• Canvas editing tools

  Color Reducer, Palette Converter, and K-Centroid Downscale are free; Background Remover and Color Style Transfer start at $0.01; Image Edit, Inpainting, Outpainting, and Seam Tiling are $0.18.
• Prepaid balance

  Top-ups start at $5, balances never expire, prices are displayed before generation, and failed generations are automatically refunded.
• API access

  Uses the same prepaid balance and pricing as the website with no extra fees.
• Teams and enterprise

  Monthly invoicing based on spend and custom model training available upon request.

Retro Diffusion Contact Email:

support@retrodiffusion.com