Hello Drnoir,
super thank you for playing it. You can download the Alpha 4.0 with a playable level 3. It makes more use of the player controls, enhanced music, puzzles, graphics, etc.
Also, your feedbacks are super welcome. We will implement some introductory texts and history between levels to keep the player motivated. And some easter eggs and secrets ;)
Our intention is to gradually immerse the player in the controls and increase the difficulty.
You will have a good challenge at level 3 :)
Cheers