How Apsis levels are made: built backwards, scored by reads
Behind the scenes: how Apsis builds every level backwards so it can always be cleared, measures difficulty in reads, and makes sure no level repeats another.
Behind the scenes
How the hint works in Apsis, and why it is always right
What Apsis's hint shows, how it picks which arrow to light, why a hinted tap can never miss, and what happens if you ask while an arrow is still flying.
Made by two: how a person and an AI built Apsis
Apsis is made by Shravan Goswami and Claude Opus 5.5, an AI model by Anthropic. Who did what, how the work was checked, and what we learned building it.
Straight lines across circles: the geometry inside Apsis
How Apsis decides exactly what a flying arrow hits, why paths along an orbit catch their neighbours, and how the game works out which arrow your finger meant.