Seeded Card Mastery

Seeded Card Mastery is an offline single-player card logic app with three game modes. Build patterns, reorganise columns, and clear pyramids on visible layouts, with unlimited Undo, contextual Hints, and deterministic seed-based runs.

Features • Three game modes: Prism Grid, Open Cells, and Thirteen Fall • Pattern Codex of the eight scoring shapes each mode can form • 12 Learn Lab boards teaching one mechanic at a time • Run History with the exact seed and final board of every run • Progress Dashboard with per-mode charts and pattern statistics • Five colour themes and multiple card styles • No ads, purchases, accounts, analytics, or internet required

How to Play • Prism Grid: Place 25 cards on a 5×5 board and form scoring shapes across rows, columns, and diagonals. • Open Cells: Rearrange 52 visible cards using free cells to build four spires from rank 1 to 13. • Thirteen Fall: Remove exposed card pairs that add up to thirteen and clear the pyramid.

Every layout comes from a seed. The same seed always produces the identical board, so any run can be replayed exactly or continued on another device.

Benefits • Skill-based play with visible, deterministic layouts • Unlimited Undo and on-demand Hints • Study patterns in the Codex, track progress in the Dashboard • Every completed run is replayable from History • Fully offline, no spending pressure, no data collection • Portrait interface with adjustable sound, haptics, and typography