Clonk is not available for Android but there are a few alternatives with similar functionality. The best Android alternative is Terraria. It's not free, so if you're looking for a free alternative, you could try The Blockheads or BlockWorld. If that doesn't suit you, our users have ranked more than 10 alternatives to Clonk and four of them are available for Android so hopefully you can find a suitable replacement.
Night is falling and your blockhead is freezing. You haven't yet made shelter and your campfire has gone out. All you have is a spade, some wood and a few sticks. You have only minutes before exhaustion hits. Do you create a bed, dig a cave or refuel your fire?