The listing, Cube Master [steam key] has ended.
https://steamdb.info/app/562650/info/
Cube Master, a seemingly simple platformer with a cubic design, the objective of which is the passage of the rooms.
You have to go through 5 unique locations, each of which includes 10 challenging rooms, which at times will seem impenetrable, and even more in just 10 seconds are given for each level.
Did not or was caught in a trap - will have to go through the whole location again! No saves, no second chances!
5 different locations
50 challenging rooms
10 seconds for 1 room