Yes, unfortunately it's very buggy. I saw your Twitch, thank you very much for your feedback, and you were right, you should use the Left and Right mouse buttons to select. But it was really poorly done, and I guess that, because it opened with a resolution bug in the second time, you could not test that. And that wall of text, lol, I didn't realised it was that big.

I'm really sorry for that. I will look into fixing it. Thank you for your feedback.

Ratainen, I won't be able to update the game for the next few hours, but if you want to play it again, I would suggest you to click in the fullscreen button before the Intro text appears, right when the Unity Logo is displayed. For me, it solved the issue at least. I hope it helps.