Cogs is a ground-breaking puzzle game where players build increasingly complex machines using sliding tiles in 2D and 3D environments. The basic app comes with 10 puzzles and three gameplay modes for a total of 30 unique challenges. Puzzle enthusiasts can buy up to four additional puzzle packs, each with another 10 puzzles, totalling more than 10 hours of mind-bending gameplay. This award-winning game is perfect for puzzle fans of any age and ability! It is awesome. TouchArcade "One of the highest quality puzzle games we've seen." PocketGamer The visual design and imagination of the game are stunning, with great attention to detail, and the sound effects are downright enticing. Adrenaline Vault If a sliding puzzle was a wheel, consider it re-invented! TouchGen A masterpiece visually, as well with the actual gameplay. AppAdvice INVENTOR MODE Starting with simple puzzles, players are introduced to the widgets that are used to build machines gears, pipes, balloons, chimes, hammers, wheels, props, and more. TIME CHALLENGE MODE If you finish a puzzle in Inventor Mode, it will be unlocked here. This time, it will take fewer moves to reach a solution, but you only have 30 seconds to find it. MOVE CHALLENGE MODE Take your time and plan ahead. Every click counts when you only get ten moves to find a solution. CRYSTAL LEADERBOARDS AND ACHIEVEMENTS Players can see how they compare to the best puzzle solvers in the world via a comprehensive scoring system, online leaderboards and achievements through Crystal!