The Star Block is a special block in Build A Boat For Treasure. It first debuted on June 12th, 2018 at 3:30 Central Time. It appears to glow when in better graphics conditions but only has a very dim glow, unnoticeable in broad daylight. It has nothing to do with the free star save. This was added due to the game having 1 million favorites. Ten star blocks are given for free when joining the game during the 1M favorite event.
Also is the block with more rotation in the game
One star block could be obtained by redeeming the code "test", but this option is no longer valid.
Five star blocks could be obtained by redeeming the code "up above", but this option is no longer valid.