It's an engine not a full game. controls wasd/arrow keys click place block, r refresh position, q throw items holding mouse scroll- to zoom for the other things change sliders values sorry the inventory is almost done but to select items use the slider"item selected"
Thanks @scratchfan321 for some insparation check out his finished terraria @HEY!!! Try this link if its lagging: https://turbowarp.org/899428112 This is not a game yet, just an engine i will make the game soon(like in a 999999 mounths probably the first version will come out , it will update) sorry i am busy right now. Really sorry for not making any changes for a while, but now i will add stuff.