SAVE THE ASTRONAUTS

Brave astronauts in search of adventure flew to an interesting planet in all plans. After wandering around it for a while, the guys decided to set up camp in the place they liked. But that wasn't the case. It turned out that the astronauts on the planet are not alone. Local (or non-local) inhabitants fly in saucers, illuminating the underlying surface with deadly rays for people.

The astronauts are panicking! There's nowhere to hide from the rays, if only... don't build a shelter. Only a higher power can do this — you in this case. From the set of building materials offered at each level, you must build a structure that can protect astronauts from the terrible rays, and thereby save them from death. You will not need physical strength, but you will need to know the basic laws of physics and logic.