It's currently very limited, but you can find it at https://sopaxorztaker.gitlab.io/tpt3d.

Source code is available at https://gitlab.com/sopaxorztaker/tpt3d.

It's based on 3DExplore, my previous experiment in writing a 3D renderer.

It's currently very buggy, the controls are inconvenient and there's only 5 6 7 elements, however I'd still like to suggest checking it out :P

Update 2018-06-02: added wood and fire!

Update 2018-06-01: added saving!

Copy the code below, paste it into the text area and press "Load" for a quick demo.

{"cubes":[{"coords":[50,-2,1],"type":4},{"coords":[50,0,0],"type":5},{"coords":[48,-2,0],"type":3},{"coords":[48,0,0],"type":2},{"coords":[12,32,2],"type":1},{"coords":[12,31,2],"type":1},{"coords":[10,31,2],"type":0},{"coords":[12,30,2],"type":1},{"coords":[10,30,2],"type":0},{"coords":[12,29,2],"type":1},{"coords":[10,29,2],"type":0},{"coords":[12,28,2],"type":1},{"coords":[10,28,2],"type":0},{"coords":[12,27,2],"type":1},{"coords":[10,27,2],"type":0},{"coords":[12,26,2],"type":1},{"coords":[10,26,2],"type":0},{"coords":[12,25,2],"type":1},{"coords":[29,-2,0],"type":2},{"coords":[29,-1,0],"type":5},{"coords":[29,0,0],"type":5},{"coords":[10,25,2],"type":0},{"coords":[12,24,2],"type":1},{"coords":[28,-2,0],"type":2},{"coords":[28,-1,0],"type":5},{"coords":[28,0,0],"type":5},{"coords":[10,24,2],"type":0},{"coords":[12,23,2],"type":1},{"coords":[10,23,2],"type":0},{"coords":[12,22,2],"type":1},{"coords":[10,22,2],"type":0},{"coords":[12,21,2],"type":1},{"coords":[10,21,2],"type":0},{"coords":[12,20,2],"type":1},{"coords":[10,20,2],"type":0},{"coords":[12,19,2],"type":1},{"coords":[10,19,2],"type":0},{"coords":[12,18,2],"type":1},{"coords":[12,17,2],"type":1},{"coords":[10,18,2],"type":0},{"coords":[12,16,2],"type":1},{"coords":[10,17,2],"type":0},{"coords":[12,15,2],"type":1},{"coords":[10,16,2],"type":0},{"coords":[12,14,2],"type":1},{"coords":[10,15,2],"type":0},{"coords":[12,13,2],"type":1},{"coords":[10,14,2],"type":0},{"coords":[18,0,1],"type":6},{"coords":[12,12,2],"type":1},{"coords":[10,13,2],"type":0},{"coords":[12,11,2],"type":1},{"coords":[17,0,1],"type":6},{"coords":[10,12,2],"type":0},{"coords":[12,10,2],"type":1},{"coords":[16,1,1],"type":7},{"coords":[16,0,1],"type":6},{"coords":[10,11,2],"type":0},{"coords":[12,9,2],"type":1},{"coords":[10,10,2],"type":0},{"coords":[12,8,2],"type":1},{"coords":[12,7,2],"type":1},{"coords":[10,9,2],"type":0},{"coords":[12,6,2],"type":1},{"coords":[10,8,2],"type":0},{"coords":[12,5,2],"type":1},{"coords":[12,4,2],"type":1},{"coords":[10,7,2],"type":0},{"coords":[12,3,2],"type":1},{"coords":[12,2,2],"type":1},{"coords":[12,1,2],"type":1},{"coords":[10,6,2],"type":0},{"coords":[12,0,2],"type":4},{"coords":[10,5,2],"type":0},{"coords":[10,4,2],"type":0},{"coords":[10,3,2],"type":0},{"coords":[10,2,2],"type":0},{"coords":[10,1,2],"type":0},{"coords":[10,0,2],"type":3},{"coords":[7,0,2],"type":6},{"coords":[6,0,2],"type":5},{"coords":[5,0,2],"type":2},{"coords":[3,0,2],"type":2}],"paused":true,"signs":[{"text":"Welcome to TPT3D!","coords":[0,0,2]},{"text":"Go right to continue!","coords":[0,1,2]},{"text":"This is a cube.","coords":[3,-1,2]},{"text":"Those have different types:","coords":[5,-1,2]},{"text":"There are solids, liquids and liquid sources.","coords":[10,-1,2]},{"text":"There's also fire! Press [Space].","coords":[16,-1,1]},{"text":"Click anywhere to place a cube!","coords":[21,-1,0]},{"text":"Press [.] to see the different types.","coords":[21,0,0]},{"text":"Try moving the viewport by dragging.","coords":[25,0,0]},{"text":"Also try [Z] and [X]! :P","coords":[28,0,0]},{"text":"Press [T] to place a sign with your own text!","coords":[31,0,0]},{"text":"[Y] will remove the last sign placed.","coords":[36,0,0]},{"text":"[Q] will clear everything.","coords":[40,0,0]},{"text":"That's it, now reload the page and try yourself!","coords":[44,0,0]},{"text":"By SopaXorzTaker","coords":[0,2,0]},{"text":"woo, some cubes are translucent!","coords":[28,1,0]},{"text":"Also try [K].","coords":[28,2,0]}],"viewport":{"coords":[2,0,-2],"look":[0,0,0]}}

TuDoR2007:

Interesting. How about a brush feature though, and maybe edit the distance the brush goes with the scroll, instead of awkwardly guessing where to move the mouse? seems good. Maybe add some fire and a fuse? Probably wtrv in a later version? This seems promising. One complaint I have is that the rendering is backwards, the blocks look inverted like you're looking INTO them not from outside, gotta fix that.

I've just fixed the rendering of cube edges, now they do show up properly.

I've also added glass and transparency, so it looks cooler! :D

Now there's a small bug about water sometimes permeating through walls, I do have to fix that. FIXED!

@NUCLEAR_FOX (View Post)

 This is not a mod.

In fact, it's a standalone game completely independent of TPT and written in JavaScript.

However, there isn't yet a mobile/touchscreen interface, unfortunately.

Check out the demo level!