--- a/main.js
+++ b/main.js
@@ -85,12 +85,6 @@
         gs.state=2;
         resetgame();
       }
-      else
-      if ((x>=110) && (x<=325) && (y>=300) && (y<=380))
-      {
-        // Decentralised game (using drand)
-        updatedrand();
-      }
       break;
 
     case 3: // Finished
@@ -198,7 +192,7 @@
       gs.uictx.fillRect(0, 0, xmax, ymax);
       gs.uictx.fillStyle="black";
 
-      // Draw PLAY and PLAY decentralised button
+      // Draw PLAY button
       var grd=gs.uictx.createLinearGradient(110, 100, 110, 180);
       grd.addColorStop(0, "#fceb08");
       grd.addColorStop(0.5, "#f2137b");
@@ -212,25 +206,6 @@
       gs.uictx.fillText("PLAY", 145, 160);
       gs.uictx.fillStyle="black";
 
-      var grd2=gs.uictx.createLinearGradient(110, 300, 110, 380);
-      grd2.addColorStop(0, "#0b68a4");
-      grd2.addColorStop(0.48, "#c1eaf8");
-      grd2.addColorStop(0.5, "#ffffff");
-      grd2.addColorStop(0.52, "#9b3c0a");
-      grd2.addColorStop(0.75, "#fcca31");
-      grd2.addColorStop(0.99, "#fbe69d");
-      grd2.addColorStop(1, "#ffffff");
-
-      gs.uictx.fillStyle=grd2;
-      gs.uictx.fillRect(110, 300, 215, 80);
-      
-      gs.uictx.fillStyle="white";
-      gs.uictx.font="bold 52px Arial";
-      gs.uictx.fillText("PLAY", 145, 350);
-      gs.uictx.fillStyle="#f2137b";
-      gs.uictx.font="bold 14px Arial";
-      gs.uictx.fillText("decentralised", 165, 370);
-      gs.uictx.fillStyle="black";
       break;
 
     case 2: // InPlay
@@ -616,66 +591,6 @@
   placeitem(2, 4);
 }
 
-// Use a decentralised random number source for seeding prng
-function updatedrand()
-{
-  // Stop using frame based advance of pRNG
-  gs.usingdrand=true;
-
-  // Set up
-  return new Promise(function(resolve, reject)
-    {
-      var req = new XMLHttpRequest();
-
-      req.timeout=5000;
-      req.open('GET', 'https://api.drand.sh/public/latest', true);
-
-      // AJAX request has changed state
-      req.onreadystatechange = function ()
-      {
-        if (req.readyState === 4) // AJAX done
-        {
-          if (req.status == 200) // Good response
-          {
-            // Parse the result
-            try
-            {
-              var res = JSON.parse(req.responseText);
-
-              // Extract 4 bytes of hex for each seed
-              rng.s1=parseInt(res.randomness.substr(0,4), 16);
-              rng.s2=parseInt(res.randomness.substr(4,4), 16);
-              rng.s3=parseInt(res.randomness.substr(8,4), 16);
-            }
-
-            catch(e)
-            {
-              gs.usingdrand=false;
-            }
-          }
-          else
-            gs.usingdrand=false;
-
-          gs.state=2;
-          resetgame();
-        }
-      };
-
-      // Something went wrong
-      req.onerror = function()
-      {
-        // drand failed, so fallback to pRNG
-        gs.usingdrand=false;
-        
-        gs.state=2;
-        resetgame();
-      };
-
-      // Fire off the AJAX call
-      req.send();
-    });
-}
-
 function resetgame()
 {
   gs.finished=false;