As the purpose of the game is to stay above the rising water, having no straightforward way of climbing is a deal breaker. There is a grid system for picking where to put the elements, but otherwise the game relies on physics interactions for placing down the objects and interacting with them. Even when I randomly get the stairs I'm looking for, the character has a hard time climbing it. Relying less on physics, and putting more elements into a grid system could help make the game more playable. The block selection can be random, but the player must see what they are about to get. This way, the challenge would be about trying to form a proper set of platforms with the random blocks  received.