pixl-data

Training data for pixl, a small text-to-pixel-art model trained from scratch.

Config	Rows	What it holds
sprites	~11.5k	Game sprites and icons (image) with a short label (label)
scenes	1.002M	32×32 scenes of four sprites each (image), with a caption written from the placement (caption)

Load

from datasets import load_dataset

sprites = load_dataset("ocdbytes/pixl-data", "sprites")  # {"train": ..., "test": ...}
scenes = load_dataset("ocdbytes/pixl-data", "scenes")

train = load_dataset("ocdbytes/pixl-data", "scenes", split="train")  # one split only

Splits

Config	train	test	Kept together in one split
sprites	~10.4k	~1.2k (10% of groups)	The colour variants of one tile, the frames of one animation, and the numbered and old/new versions of one Dungeon Crawl sprite
scenes	1,000,000	2,000	Set by the generator: test scenes use test sprites, or an object pair never seen together in train scenes

Rows in each defined sprite group stay in one split, reducing leakage from related frames and variants. This grouping does not detect every possible near-copy. A group is in test when the first 8 hex digits of the SHA-256 of its key, as a fraction of 16⁸, are below 0.1. The split is fixed: new data never moves existing rows.

sprites

Sprites from CC0 packs by Kenney (1-Bit Pack, 1-Bit Platformer Pack, Board Game Icons, Cursor Pixel Pack, Game Icons, Monochrome Pirates, Pico-8 City, Pixel Shmup, Pixel Vehicle Pack, Tiny Battle, Tiny Dungeon, Tiny Farm, Tiny Town), ansimuz (Sunny Land), GrafxKid (Mini Pixel Pack 3), Buch (A Platformer in the Forest), the Dungeon Crawl Stone Soup artists (Dungeon Crawl 32x32 tiles), Idylwild (Idylwild's Inventory), Scrittl (Spaceship set 32x32px), Jull (Animated spaceships) and wender (Sports cars pixelart sprites). label_source says where each label comes from: checked by eye (claude-visual), a file name (filename) or a sprite-sheet atlas (atlas).

Icons by the game-icons.net contributors (the row's creator, e.g. Lorc or Delapouite), available on https://game-icons.net under CC BY 3.0, rendered as white silhouettes 30×30 pixels in size on a 32×32 transparent canvas. Each row's source_url is the icon's page. Icons with abstract names, or about gore, drugs, self-harm or nudity, were left out. Kenney's Board Game Icons and Game Icons are converted the same way, keeping only icons of objects, not interface actions; the 1-Bit Platformer Pack keeps whole objects, not its ground and platform pieces.

Monochrome sprites (the 1-Bit Pack's white tiles, the 1-Bit Platformer Pack, the Cursor Pixel Pack, Monochrome Pirates and the icons) have labels starting with "monochrome", without the colour words of their coloured versions, so a caption tells colour and monochrome apart. The 1-Bit Pack's copies of objects on a dark square are left out; its ground tiles keep theirs.

Column	Meaning
path	File path in the original pack layout
pack, creator, source_url	Which pack the sprite comes from
license	CC0 1.0, or CC BY 3.0 for game-icons.net icons
width, height	Size in pixels
label, label_source	Label and where it comes from
image	The sprite (PNG, with transparency)

scenes

Synthetic 32×32 scenes, each made from one sprite style: a background tile repeated in every 16 px slot and four coloured objects with different labels, one centred in each quadrant. Sprites are not scaled, except the 32×32 Dungeon Crawl tiles, which are halved to 16×16 by keeping every other pixel; halved objects that fall apart into pieces are left out. The caption names each object's quadrant, listing the objects in random order, so it is always right: "a pine tree at the bottom right, a red house at the top left, a well at the top right and a barrel at the bottom left on grass". Images are drawn in the shared 256-colour palette, so they encode back to palette tokens exactly. Until November 2026 this config held 100,000 scenes of one or two objects; they remain in the repo's history.

Kind (kind)	Split	Scenes	Objects from
train	train	1,000,000	Train-split sprites, with no held-out label pair
new sprites	test	1,000	Test-split sprites only
new pair	test	1,000	Train-split sprites, with at least one label pair that never appears together in train scenes

Column	Meaning
caption	The scene's caption
swapped	The caption with the first two listed objects' quadrants exchanged, for testing whether a model reads positions
kind	See above
style	Sprite pack (or 1-Bit Pack colour family) the scene is made from
background, background_path	Background tile label and path in the sprites config; empty for a transparent scene
objects, sprites, slots	Each object's label, path and row,column slot, |-separated
image	The scene (PNG, transparent where there is no background)

Licences

Sprite rows carry their licence in license. Scene rows have no separate licence column; they use only CC0 sprites:

• Sprites: CC0 1.0, except the game-icons.net icons: CC BY 3.0 (credit the creator; see the sprites section).
• Scenes: CC0 1.0, as they are made only from CC0 sprites.