Lots of challenges are waiting for you! Try to put all elements of a level together to a tower / pillar: Either free as you like as long as you reach a certain height. Or in a given formation. But be careful not to shake or tilt your device: gravity is influencing your construction. The challenge is fulfilled when it stays free standing for at least 6 seconds. Despite the onboard challenges you can download other challenges from other player from internet FOR FREE! AND: you may create your own constructions and upload them for others. So, the number of challenges is only limited by your and other players creativity.
With this free version you can play all challenges from other players that created them with a free version. To be able to play ALL challenges from internet you can buy the PRO version. Additionally - with the PRO version - you can challenge friends with constructions you made. Of course the PRO version also comes without Ads! :)