Quartessa
The game itself. Never “Tessera” or “Quartiles.”
Tessera · Tesserae
A single / multiple 4-tile hidden word(s). Never “Quartile” / “Quartiles.”
Motif
The hidden connection between the five Tesserae. Players deduce, they don’t guess.
Tesseract
The highest player rank — achieved by scoring 240 points.
Quartessa Unlimited
Premium subscription. Never “Pro,” “Plus,” or “Premium tier.”
Puzzle Pack
A separately purchasable themed collection. Never “Bundle,” “Expansion,” or “DLC.”