Shells - Nested Block Puzzle

Slide nested pieces into larger shells to rearrange the board and find your way out. Shells pairs simple sliding-block mechanics with deep emergent complexity on a compact 4x4 grid, making it perfect for quick sessions or focused brain training. The game challenges spatial reasoning and problem-solving with elegantly designed puzzles that reward strategy and planning.

Features include over 360 original levels across 8 distinct worlds, a flexible progression that lets you choose multiple levels at any point, and an optional hint system to tailor difficulty. Soothing piano music, gentle sound effects, and calming backgrounds create a relaxed atmosphere while you play. Shells is a minimal, thoughtful puzzle experience built for players who enjoy gradual challenge and clean design.