Just move using arrow keys, and build using Z. You can only build with grass but i'm working on that. Maybe i'll add trees. maybe. I just made this for no reason, but have fun with it if you like it.
Thanks To Xamuil2 For A Platforming Tutorial, Go Check His Channel Out On Youtube! Links to Xamuil2 here: https://www.youtube.com/channel/UC_vPY9sbi5M5hxTbJUAsa8g