Changelog

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All notable changes to Retro Asset Studio are listed here, newest first. Download builds from retroassetstudio.com/download. The app has no auto-update, so check this page or the download page for new versions.

0.1.0-alpha.1 - 2026-09

First public alpha. Windows 10/11 x64 only, unsigned installer and portable zip. See Alpha Status for known limitations.

Projects

  • Multiple projects, each with a style description, background color, resolution defaults per asset type, and character and environment reference images.
  • Per-project AI provider selection with keys stored encrypted (Windows DPAPI).
  • Project export and import: File > Export Project…, Export All Projects…, and Import Project… using .rasproj archives that hold settings, characters, poses, frames, spritesheets, and every image. Import offers Replace or Copy when the project already exists. API keys are never included.
  • Export Project… button in the Project Settings Backup card; Import Project… in the project selector dropdown.

AI providers

  • Google Gemini image generation with an AI Studio key: gemini-3-pro-image (recommended default), gemini-2.5-flash-image, or a custom model id. Reference images are supported.
  • Hugging Face (Nano Banana 2 Space) and OpenAI (gpt-image-1, dall-e-3) providers are visible in the provider list but disabled and labelled "Coming soon".
  • Test Connection for the active provider.

Generation tools

  • Character Designer for character sprites with optional project reference image and per-generation resolution override.
  • Asset Generator for backgrounds, props, and UI elements with aspect ratio and resolution presets, including SNES and Game Boy sizes.
  • Create Variant from the asset details popup: generates a new asset using the source image as the reference.
  • Pose Editor with an 18-keypoint OpenPose skeleton, forward-kinematics dragging, preset and saved poses, posed-frame generation, and OpenPose JSON export.
  • Spritesheet Generator: describe an animation, pick 2 to 12 frames, generate a two-row sheet, adjust per-frame crop boxes, and save the frames to the character.

Editing

  • Pixel snap (Get Pixel Perfect) with adjustable grid size and color count.
  • Image Editor with pencil, eraser, eye dropper, palette editing, color merging, transparent color, preview on sample backgrounds, and undo/redo.
  • Image menu: Mirror Vertically/Horizontally, Move Pixels (Ctrl+Arrow keys), Scale Image… (nearest-neighbor, px or %, aspect lock), Resize Canvas… (9-point anchor, px or %, aspect lock).

Spritesheets

  • Spritesheet Editor with frame strip, drag-to-reorder, frame deletion, per-frame pixel editing, animation timeline with start/end markers and FPS presets, and export of the full sheet or a range as a horizontal PNG strip.

Asset management

  • Asset Browser with type filters, search by name and tag, zoomable detail popup, edit, variant, download, and delete.
  • Help > About dialog with the version number and links to the website, documentation, bug tracker, and Ko-fi.

Known issues

  • No undo for deleting assets, frames, or projects.
  • Only Google Gemini is enabled as a provider; Hugging Face and OpenAI are coming soon.
  • Spritesheet export is a single horizontal strip only.
  • Large images are slow in the palette editor.
  • macOS and Linux builds are not available yet.
License (EULA)