diff --git a/includes/script.js b/includes/script.js
index 65d2241..e79ecbe 100644
--- a/includes/script.js
+++ b/includes/script.js
@@ -291,12 +291,12 @@ $(document).ready(function() {
                     // if we want to always create new tiles, don't bother trying to check matches
                     if (tileMatchThreshold === 64) {
                         // even if we want to "always create new tiles" we still don't want to create duplicates
+                        // THIS SEEMS TO NOT BE WORKING
                         var bestMatch = _.find(bitsyData.tiles, function(tile) {
                             return tile.bitmap === pseudoTile;
                         });
 
                         if (bestMatch) {
-                            console.debug(pseudoTile === bestMatch.bitmap);
                             bestMatch.match = 64;
                         }
                     } else {
@@ -458,6 +458,8 @@ $(document).ready(function() {
     $('#save').on('click touchend', function() {
         var newGameData = $('textarea').val();
 
+        // handle rooms
+
         // need to import IDs so we don't give the new room a conflicting ID
         var roomNames = newGameData.match(/ROOM \d+/g);
 
@@ -478,7 +480,30 @@ $(document).ready(function() {
 
         newRoom += "PAL " + palette.id + "\n";
 
+        newGameData = newGameData.replace(/(ROOM .*\n(.*\n)*PAL .*)/g, '$1\n\n' + newRoom);
+
+        // handle tiles
+
+        var newTiles = _.filter(bitsyData.tiles, 'new');
+        var tileText = "";
+
+        _.each(newTiles, function(tile) {
+            tileText += "TIL " + tile.name + "\n"; //again, rename tile name to id...
+
+            _.each(tile.bitmap, function(row) {
+                tileText += row.join('') + "\n";
+            });
+
+            // don't need to worry about animation right now
+
+            tileText += "\n";
+        });
+
+        newGameData = newGameData.replace(/(TIL.*(.*\n)*)SPR/g, '$1\n\n' + tileText + '\nSPR');
+
         // write
-        $('textarea').val(newGameData.replace(/(ROOM .*\n(.*\n)*PAL .*)/g, '$1\n\n' + newRoom));
+        $('textarea').val(newGameData);
+
+        // todo: give the user some nice "yay! it worked!" kinda feedback?
     });
 });
diff --git a/readme.md b/readme.md
index 5a727ae..b75159b 100644
--- a/readme.md
+++ b/readme.md
@@ -40,19 +40,22 @@ croppie.js:182 (mine)
 if (src.match(/^(file|https)?:\/\/|^\/\//)) {
 ```
 
+## known bugs
+
+* new tiles can be duplicates
+    * take a different approach
+
 ## to do
 
 * allow user to save output as image, or tweet it :) 
     * *user can currently right-click -> Save As but the 128x128 size is not great*
-* create new tiles based on image
-    * only add unique new tiles
-    * don't write the 0 tile (implicit background-only tile)
 * implement slider (*always use existing tiles* -> *always create new tiles*) (representing 0-64 threshold for # of common pixels)
 * re-style the damn thing
 * reorganise the page layout for a more logical workflow
 * animate animated tiles 
 * profile script performance and optimise where most needed
 * make brightness slider trigger redraw every so often while being dragged, instead of waiting until drag stop
+* make 'never'/'always' clickable
 
 ## could do