Crux is a free Android game developed by Mindgames Studios, categorized under puzzle games. The game has a unique concept that combines puzzle-solving with rock climbing. The objective is to climb to the top of a virtual rock wall by swiping on either side of the screen to move your hands or feet to a new hold. However, each hold has a limited time, which adds a layer of difficulty to the game.

Crux offers various challenges with different levels of difficulty. Once a player has mastered all the challenges, the game allows them to design their own routes and share them with other climbers. The game has a minimalist design and an easy-to-use interface, making it accessible to all types of players. Overall, Crux is a challenging and fun game that combines puzzle-solving and rock climbing in a unique way.