Description: In qrth-phyl you manoeuvre around, and within, three dimensional stages, leaving a persistent tail behind you that you must avoid. The stages are algorithmically generated and adapted according to how you play. Hidden in the game are documentary elements that chart the development and inception of Blockade/snake/worm videogames from 1976 to today. The game plays in 3D, is adaptive and fuses elements of documentary. qrth-phyl continues the algorithmic, generative and metaphorical arcade game design ideas last seen in previous hermitgames/Verran release Leave Home.