Hi, thanks for playing!
We unfortunately ran out of time and weren't able to include everything we wanted. One of the things that we would have liked to include were clearer in-game instructions and possibly a tutorial. The idea is that you stack during other players' turns, and then when it gets to your turn your tower is "locked in" and your score is calculated from the height multiplied by your roll, before resetting your tower. We hope to work on the game more and make it a bit less confusing. Thanks for the feedback!