What shape casts that shadow?

KAIROS — Shadow Puzzle is a meditative 3D puzzle game where you rotate geometric shapes and watch their shadows transform. Your goal is simple: match the cast shadow to the target silhouette. Easy to learn, endlessly satisfying.

Each level is a quiet exercise in spatial reasoning and 3D logic. Tilt a cube and its shadow shifts from square to diamond to hexagon. Tip a cone and the ellipse collapses to a triangle. Twenty-one unique 3D shapes — cube, sphere, cylinder, cone, torus, icosahedron, keyhole, archway, gear, obelisk and more — each with its own shadow language to discover. No timers, no explosions, no filler. Just you, the light, and the shape.

—— FEATURES ——

◆ 1,200 hand-crafted levels across 12 chapters — gentle introductions to mind-bending geometry challenges
◆ 21 distinct 3D shapes, each casting shadows that defy expectation
◆ Daily Puzzle — a new shadow challenge every day with a streak reward system
◆ Global leaderboard and country ranking — compete with players worldwide
◆ Full 3D rotation control — drag, spin, and tilt every shape with precision
◆ Smart hint system — gentle nudges that keep you moving without spoiling the logic
◆ Lives system with generous recovery — play at your own pace
◆ Ambient soundtrack — soft, looping music designed for deep focus
◆ Available in 10 languages
◆ Clean minimal design — no clutter, no popups, no noise

—— A BRAIN TRAINING GAME FOR GROWN-UPS ——

KAIROS was built for adults who love logic puzzles, brain teasers, and elegant design. It rewards geometric intuition and spatial thinking — the same mental skills used in engineering, architecture, and mathematics. Whether you solve one puzzle in five minutes or finish a chapter in one sitting, the experience scales to you.

No pay-to-win. No energy walls. No countdown timers forcing purchases. Just honest puzzle design with progressive difficulty that respects your intelligence.

—— THE DAILY PUZZLE ——

Every day a new silhouette appears. Rotate the shape. Find the exact angle. Solve it and grow your streak — milestone days reward you with bonus diamonds. Miss a day and the streak resets, so keep coming back.

—— WHO IS KAIROS FOR? ——

→ Puzzle lovers who want something beyond match-3
→ Fans of spatial reasoning, geometry, and 3D brain teasers
→ Players who want a relaxing game that still challenges the mind
→ Anyone curious how a shadow can lie about the shape that casts it

Download KAIROS — Shadow Puzzle and see geometry in a new light.

KAIROS: Shadow Puzzle 3D