Watch the skill in action — generating a complete 64×64 character spritesheet from a single prompt:
View on X (Twitter)

For: Codex (OpenAI) and GPT Web Agent
Purpose: Generate game-ready 64×64 pixel-art character spritesheets with 8-direction animations from a text prompt or reference image.

"Use game-character-64 to make a 64x64 knight with 8-direction walk and attack
animations from this image."

Given a concept or reference image, this skill:

1. Establishes character identity — species, class, silhouette, palette, weapon, outfit.
2. Generates a canonical base sprite — a readable 64×64 pixel-art character.
3. Produces animation strips — idle, walk, attack for all 8 directions (24 rows × 6 columns).
4. Runs pixel cleanup — quantizes palettes, snaps edges, handles alpha.
5. Validates the atlas — checks frame integrity and generates a contact sheet.
6. Packages output — final spritesheet + QA report ready for import into RPGs, roguelikes, top-down action games, or tactics engines.

run/
├── prompts/
├── generated/              # raw strips from image generation
├── final/
│   ├── character-sheet.png
│   └── character-sheet-clean.png
└── qa/
    ├── validation.json
    └── contact-sheet.png

Default 8-direction order:

south, south-east, east, north-east, north, north-west, west, south-west

Default atlas: 384 × 1536 (6 columns × 24 rows × 64px).

Smaller scopes available:

• walk-only: 8 rows × 6 frames
• idle-walk: 16 rows × 6 frames
• combat: idle + walk + attack for all 8 directions

"Use game-character-64 to make a 64x64 knight with 8-direction walk and attack
animations from this image."

• scripts/pixel_snap.py — alpha threshold, palette quantization, pixelate-scale edge hardening
• scripts/validate_64_sheet.py — frame validation + contact-sheet generation
• scripts/export_animation_previews.py — export GIF/PNG previews per animation row

• Python 3.9+
• Pillow (pip install Pillow)
• Image generation backend (Codex/GPT $imagegen or DALL-E / Midjourney / etc.)

MIT — see SKILL.md for full workflow documentation.