Gallerioid
Gallerioid is a review page for the sprites of Moleculoids, the browser game of Molecular Reality Corporation whose monsters are rendered from structures in the Protein Data Bank. Its title bar reads "Moleculoids Sprite Review". The page lays out 60 sprites, each turning in a small window with a Good button and a Bad button under it, so that a reviewer can decide which proteins make good monsters. A rating lasts until the page is closed.
The page
Each card holds a canvas 200 pixels square that plays a turntable of 32 frames at 80 milliseconds a frame, so a molecule completes a turn in 2.56 seconds. The frames are 128 pixels square and are enlarged for the display. Two small buttons switch a card between the two ways the sprites were drawn, ball-stick and spacefill. Under the canvas are the title of the structure's entry in the Protein Data Bank, its four-character code, its size class, its number of atoms and the points a kill is worth in the game.[1] The first card, 109L, is a study of alpha-helix propensity in T4 lysozyme.
A toolbar above the cards offers All (60), Unrated, Good, Bad and Download CSV. The number in the first label is typed into the page and not counted. A line below it reports the totals, and a card's border turns green when it is rated Good and red when it is rated Bad.
Where the ratings go
The ratings and the review log live in the memory of the open page. Apart from loading the sprite list and the sprite sheets, the page makes no request to the server and writes nothing to the browser's storage, so reloading it returns every card to unrated. The log under the cards opens with "No reviews yet".[1]
The Download CSV button builds a file named gallerioid_review.csv with the columns time, pdb_id, style, tier, atoms and status. It is the only record a reviewer can keep. Every click on Good or Bad adds a row, a change of mind included, so a sprite rated twice appears twice. The page has no means of sending a rating to the company.
The sixty
The sprites are sorted into three classes by mass, under 100 kilodaltons, 100 to 500, and over 500, and each class is worth a fixed number of points per kill.[1]
| Class | Sprites | Mass (kDa) | Atoms | Points per kill |
|---|---|---|---|---|
| Small | 21 | 3.35 to 65.83 | 489 to 17,660 | 10 |
| Medium | 27 | 107.86 to 426.72 | 6,440 to 27,540 | 25 |
| Large | 12 | 522.49 to 882.24 | 3,900 to 48,889 | 50 |
Together they hold 1,039,098 atoms. Thirty-six of the structures were solved by X-ray diffraction, 21 by electron microscopy and three by NMR in solution. Because the class follows mass and not atom count, the ranges overlap: the small entry 1HX2, a trypsin inhibitor of the toad Bombina bombina, shows 17,660 atoms on its card, and the large entry 1DEQ, a fibrinogen model fitted at about 4 ångströms, shows 3,900.
The data file under the page labels all 60 entries as proteins of unknown function. Three of them are not proteins. The game uses 100D, a chimeric RNA and DNA duplex bound to spermine, 105D, a four-stranded DNA called an i-motif, and 107D, a DNA duplex bonded to an antitumor antibiotic, and the board lists them with the rest.
Several cards repeat a molecule. Three entries for a paused elongation complex of Escherichia coli RNA polymerase (10MB, 10MC and 10MD) have the same 26,767 atoms and the same mass, 415.98 kDa. The board holds both forms of the mouse Piezo1 channel, curved (11YE, 29,295 atoms) and flat (11ZC, 16,644). Three of the twelve large sprites are carbamoyl phosphate synthetase from E. coli: 1BXR with an ATP analog, 1C30 with one amino acid changed, and 1CS0 with a bound tetrahedral mimic.
Against the game
The game does not choose from the board. Its loader lists 26 codes by hand, 11 small, 10 medium and 5 large. Seventeen of them are among the 60. Nine have no sprite sheet, among them four of the five large ones, and the loader skips them without a message. The other 43 sprites on the board never appear in play. Of the three polymerase entries only 10MB is in the game's list, and of the two Piezo1 entries only 11YE, which makes the curved channel the boss of every level.[1]
Origin
The sprites were rendered in May 2026 by the pipeline that also supplies the proteins of the Cell world in Universe Window. The review page entered the company's repository on June 8, 2026, in the commit that added the game.[2] A comment at the top of its file calls it "Gallerioid v2".