Hello, I made my pupils install the version which is in the official repo. It is Ubuntu 19.04 if I remember well. They just made
sudo apt install enigma and some of them tried to play. They all complained about freezing when a level was finished. One of them had Ubuntu crashed. I asked him that he open a terminal, entered htop and there he saw that enigma was on stopped state but used 100% of the CPU time. I also had problems when I wanted to quit enigma. I made Ctrl+Alt+t and I had a terminal instead of enigma. It solved my problem. I guess the problem was the control of the mouse which is to be shared between the game and the system. I hope it will not be the same with the new version. I did not dare to ask my pupils to try the new version, because of the dependencies (not much time in front of the screens at school) Alain