Had a quick play on the browser version. It's a charming little game but I don't think I'd pay for it right now. Once it gets some sort of direction other than just "lego blocks". The dev deserves money for this game but from my PoV maybe not right now.
Did quite enjoy just carving a huge hole into the mountain and finding a cave full of mushrooms tho. Then you can keep going and get trapped in lava (which I wasn't able to copy )
For a proper trial, just use the pirated Alpha, it's a bit broken, and you should obviously not use it when you enjoy the game, but then at least you get a proper trial
With the new plugins I'm installing, we'll be able to make zones protected as well, for example Vessy can only edit Vessy'y deathstar, etc. Works with groups also.