MoleculArcade
MoleculArcade is a web page of Molecular Reality Corporation that presents six arcade games with molecular themes, under the line "Classic arcade games reimagined through the lens of molecular biology. Learn real science while you play." One of the six, Moleculoids, can be played. The other five carry the label "Coming Soon" and have no link: Pac-Protein, Molecular Invaders, Centipeptide, Ribo-Runner and Crispr Command.[1] Each title, apart from Ribo-Runner, is a pun on an arcade game of 1978 to 1981.
The page
The page is a grid of cards on a dark background faintly ruled with a cyan grid. Each card has an icon, a title, a description of two or three sentences and a badge reading "Live Now" or "Coming Soon"; only the live card responds to a click. The header has the company's two characters, Keltar and Maxine, and, for members who are signed in, their total of experience points.[1]
None of the six games uses an instrument. The company's game with a live nanopore behind it is Maxine's Quest, whose monsters are summoned by spikes in the current on the laboratory bench.
Name
The name was in the code before the page existed. In the company's web application the route that serves Nanopore Studio, a two-dimensional nanopore simulator first posted to members in April 2026, sits under a heading "MoleculArcade", and its description reads "Render the MoleculArcade standalone 3D app." The arcade page itself was written later, in June 2026. Its template's file name and the simulator's differ by one letter, "molecul" against "molecule".[2]
The arcade's emblem, among the company's image files, is a neon arcade cabinet wound into a double helix inside a ring.
Moleculoids
On the live card, Moleculoids is "a molecular take on the classic Asteroids" in which "Proteins split by molecular weight" and the player should "Watch for binding partners that merge into super-complexes!"[1] That was the game's first design, modeled on Atari's Asteroids of 1979, and it survives in a backup folder. The game behind the card is a top-down dungeon crawler whose monsters are rendered from structures in the Protein Data Bank.
Coming soon
Pac-Protein
"Navigate a hungry enzyme through a maze of substrates. Collect cofactors for power-ups and gobble up inhibitors before they deactivate you!"[1] The name recalls Namco's Pac-Man (1980), in which a power pellet lets the player eat the ghosts that chase him. In enzymology the arrangement runs the other way. An enzyme that processes a mechanism-based inhibitor, or suicide substrate, is the one inactivated by it; penicillin kills bacteria this way, by being taken up by the enzymes that build their cell walls and binding permanently to them.
Molecular Invaders
"Defend the cell membrane from waves of descending viral particles. Your antibodies fire upward".[1] The model is Taito's Space Invaders (1978), in which rows of aliens descend on a cannon that fires upward. Antibodies can neutralize a virus by binding the proteins it uses to attach to a cell, and an antibody of the commonest class, IgG, is about 10 nm across, against 20 to 300 nm for most viruses.
Centipeptide
"A polypeptide chain winds down the screen. Shoot its peptide bonds to fragment it, but watch out".[1] The fragments, the card warns, "become independent enzymes!" In Atari's Centipede (1981) a shot that hits the middle of the centipede splits it in two, and each half carries on with a head of its own. The biochemistry has a precedent as well: many digestive enzymes are made as inactive precursors and switched on by the cutting of a peptide bond, and trypsin, once freed from trypsinogen in this way, cuts and activates more trypsinogen.
Ribo-Runner
"Race your ribosome along mRNA, translating codons into amino acids. Dodge misfolded proteins and collect tRNA to build your polypeptide chain!"[1] It is the one title with no arcade game in its name. A bacterial ribosome adds roughly ten to twenty amino acids to a growing chain each second, each brought by a transfer RNA matched to a three-letter codon. Misfolded proteins are the business of chaperones, which in Moleculoids are a family of monster.
Crispr Command
"Guide your Cas9 complex to invading viral DNA sequences. Match the PAM site, cut the target, and defend the genome!"[1] The name recalls Atari's Missile Command (1980), in which the player defends six cities from falling missiles. The card describes Cas9's natural job. CRISPR systems are the adaptive immune systems of bacteria and archaea, which keep pieces of past invaders' DNA as a record and cut matching DNA when it returns. Cas9 cuts only where its target sits beside a short protospacer adjacent motif, the PAM, which for the most used Cas9 is the sequence NGG; the bacterium's own record lacks it, which keeps the enzyme from cutting its own genome.[3] The designer of Missile Command, Dave Theurer, also designed Tempest, one half of the brief for the company's unmade Poop of the Gods.
Development
Moleculoids entered the company's repository on June 8, 2026, in a large commit whose message describes a different change, "Change 1: Implement logarithmic Y-axis range slider (±10 fA to ±600 nA)".[4] The arcade page dates from June 22, and its server code was last changed on July 14. The proteins were reviewed for their looks on a separate page, Gallerioid.[2]
An earlier quest on the company's member software, worth 250 experience points and since switched off, asked members to "come up with a cool proposal for a (stupid + fun) virtual molecular game".[2]
See also
References
- ^ a b c d e f g h "MoleculArcade". Molecular Reality Corporation. July 2026.
- ^ a b c "Company records". Molecular Reality Corporation. July 2026.
- ^ Jinek, M. (2012). "A programmable dual-RNA-guided DNA endonuclease in adaptive bacterial immunity". Science 337 (6096): 816-821. doi:10.1126/science.1225829.
- ^ "Change 1: Implement logarithmic Y-axis range slider (±10 fA to ±600 nA)" (commit
db099c0). epicquest.bio web application. June 8, 2026.