(+) Breakthrough approach to voxel building. Can make blocks bigger and smaller. Can choose from many great textures, instantly. Size physics works. Have tools to build a mountaint or a pen. NO other game known grants such option.
(+) Community sharing works. Thanks to alpha builders for desperate effort and nice places I could visit.
(-) Movement control is weak. Not sure what exactly. I cannot understand how far I will jump. Same mouse movements place crosshair always in different positions.
(-) Please please do not "innovate" mouse control!! LMB is for main action, RMB is for alteration / drop-down menu. That's universal standard for both business and game apps. Please, remove block placement from RMB to LMB. Let it remain "like in MC".
(-) Sound control is... absent. After 2 minutes of bedlam, I took off my headphones and played in silence.
(-) Fly is a must in building mode. Did not find it.
(-/+) Cargo vehicles are available as immovables. Hope someday we can drive them, full of loot. And fly. And sail...
(-/+) AI perfomed totally no reaction to simple request "brick house". Hope someday it gets a bit smarter.

(+++) In its core, ST World is already playable. It has serious ambitions and potential to become yet another "MC killer".