Hi,

I have just released RetroIDE. It is a retro game development tool suitable for use on smartphones.
You can easily create games with the code editor and the sprite editor.
The programming language is Javascript and contains the library of various simple functions.
The created game can be output to an HTML file and published on the web.

More details

https://pigmhall.itch.io/retroide

Added the 3D functions. You can create 3D game with it now! 

The following is an example code of using it.

//-- 3d example
sprite(1,"floor",1);
sprite(2,"ball",5);
function init(){
 // floor
 c=setm(0,0,0,1,-1);
 mrx[c]=270;
 ms[c]=300;
 maprepeat(c,80,80);
 // balls
 w=30
 for(i=0;i<200;i++){
  c=setmSphere(rnd()*w-w/2,0,rnd()*w-w/2,2,1,rand(3));
 mry[c]=rand(360);
 }
 // camera
 setcam(0,1,0,0,0,0);
 bgcolor("#0000ff");
}
function move(i){
 switch(m[i]){
  // bounce a ball
  case 1:
   if(abs(sx)<5)sx*=1.5;
   if(abs(sz)<5)sz*=1.5;
   sy+=syy;
   syy-=.2;
   if(sy<1){sy=1;syy=rnd()*3;}
  break;}
}
function update(){
 // rotate a camera
 cary=(cary+1)%360;
}

Result