ROSE ENGINE: A Game Boy Arcade Survival Game, Free Demo
A game from Core Systems Asset Factory. Genre: Action. Paid; free browser demo on the page.
ROSE ENGINE: A Game Boy Arcade Survival Game, Free Demo is a game, paid, with a free browser demo on the store page.
ROSE ENGINE is a Game Boy arcade survival game with endless play: you stay alive inside a rose curve while the lathe cuts it around you. Six dials are free in your browser. A rose engine is the lathe that cuts guilloche, the woven ornament on the face of a pocket watch. It works by moving a cutter against a rotating plate. Everything it draws is a rose curve. This cartridge points one at you.
You are a burnisher loose on the plate. The lathe starts at the rim and works inward, cutting a figure around you. Fresh metal is black and it is hot, and it will end your dial. A moment later it cools to grey and becomes finished ornament you can cross freely. Survive until the figure closes and the dial is yours. The figures are computed, not drawn There is no picture of any dial anywhere in the ROM.
The cutter follows r = band + amp x cos(petals x angle + phase), which is the equation of a rose. The band walks from the rim to the centre across the round, and the phase advances a little every revolution. That drift is the rose engine's own index, and it is what turns a single closed curve into a woven dial instead of one line retraced forever. Five numbers define a cut.
AI disclosure, as the store page states it: AI Assisted, Code, Graphics, Text
Paid · free browser demo on the page · Get it on itch.io. Files, screenshots and the full description are on the store page.