diff --git a/mods/moveable_cubes.js b/mods/moveable_cubes.js
new file mode 100644
index 00000000..139d7ac2
--- /dev/null
+++ b/mods/moveable_cubes.js
@@ -0,0 +1,258 @@
+elements.steel_cube = {
+    color: "#71797e",
+    colorKey: {
+        "L":"#888f94",
+        "B":"#71797e"
+    },
+    colorPattern: [
+        "BBLB",
+        "BBBL",
+        "BLBB",
+        "LBBB"
+    ],
+    reactions: {
+        "water": { elem1:"rust", chance:0.002 },
+        "salt_water": { elem1:"rust", chance:0.004 },
+        "dirty_water": { elem1:"rust", chance:0.03 },
+        "pool_water": { elem1:"rust", chance:0.03 },
+        "sugar_water": { elem1:"rust", chance:0.003 },
+        "seltzer": { elem1:"rust", chance:0.005 },
+        "salt": { elem1:"rust", chance:0.003 },
+        "blood": { elem1:"rust", chance:0.002 },
+        "infection": { elem1:"rust", chance:0.002 },
+        "antibody": { elem1:"rust", chance:0.002 },
+        "coffee": { elem1:"rust", chance:0.0002 },
+        "tea": { elem1:"rust", chance:0.0002 },
+        "broth": { elem1:"rust", chance:0.0002 },
+        "juice": { elem1:"rust", chance:0.0002 },
+        "nut_milk": { elem1:"rust", chance:0.0002 },
+    },
+    tempHigh: 1455.5,
+    stateHigh: "molten_steel",
+    category: "cubes",
+    density: 7850,
+    conduct: 0.42,
+    hardness: 0.8,
+    tick: function(pixel) {
+        if (tryMove(pixel, pixel.x, pixel.y+1)) { // Fall
+            if (!isEmpty(pixel.x, pixel.y-2, true)) { 
+                var cube2 = pixelMap[pixel.x][pixel.y-2];
+                if (cube2.element == "steel") {
+                    if (isEmpty(pixel.x, pixel.y-1)) {
+                        movePixel(pixelMap[pixel.x][pixel.y-2], pixel.x, pixel.y-1);
+                    }
+                    else {
+                        swapPixels(pixelMap[pixel.x][pixel.y-2], pixelMap[pixel.x][pixel.y-1]);
+                    }
+                }
+            }
+            if (!isEmpty(pixel.x+1, pixel.y-1, true)) { 
+                var cube2 = pixelMap[pixel.x+1][pixel.y-1];
+                if (cube2.element == "steel") {
+                    if (isEmpty(pixel.x+1, pixel.y)) {
+                        movePixel(pixelMap[pixel.x+1][pixel.y-1], pixel.x+1, pixel.y);
+                    }
+                    else {
+                        swapPixels(pixelMap[pixel.x+1][pixel.y-1], pixelMap[pixel.x+1][pixel.y]);
+                    }
+                }
+            }
+            if (!isEmpty(pixel.x+2, pixel.y-1, true)) { 
+                var cube2 = pixelMap[pixel.x+2][pixel.y-1];
+                if (cube2.element == "steel") {
+                    if (isEmpty(pixel.x+2, pixel.y)) {
+                        movePixel(pixelMap[pixel.x+2][pixel.y-1], pixel.x+2, pixel.y);
+                    }
+                    else {
+                        swapPixels(pixelMap[pixel.x+2][pixel.y-1], pixelMap[pixel.x+2][pixel.y]);
+                    }
+                }
+            }
+            if (!isEmpty(pixel.x-1, pixel.y-1, true)) { 
+                var cube2 = pixelMap[pixel.x-1][pixel.y-1];
+                if (cube2.element == "steel") {
+                    if (isEmpty(pixel.x-1, pixel.y)) {
+                        movePixel(pixelMap[pixel.x-1][pixel.y-1], pixel.x-1, pixel.y);
+                    }
+                    else {
+                        swapPixels(pixelMap[pixel.x-1][pixel.y-1], pixelMap[pixel.x-1][pixel.y]);
+                    }
+                }
+            }
+            if (!isEmpty(pixel.x-2, pixel.y-1, true)) { 
+                var cube2 = pixelMap[pixel.x-2][pixel.y-1];
+                if (cube2.element == "steel") {
+                    if (isEmpty(pixel.x-2, pixel.y)) {
+                        movePixel(pixelMap[pixel.x-2][pixel.y-1], pixel.x-2, pixel.y);
+                    }
+                    else {
+                        swapPixels(pixelMap[pixel.x-2][pixel.y-1], pixelMap[pixel.x-2][pixel.y]);
+                    }
+                }
+            }
+            if (!isEmpty(pixel.x+1, pixel.y-2, true)) { 
+                var cube2 = pixelMap[pixel.x+1][pixel.y-2];
+                if (cube2.element == "steel") {
+                    if (isEmpty(pixel.x+1, pixel.y-1)) {
+                        movePixel(pixelMap[pixel.x+1][pixel.y-2], pixel.x+1, pixel.y-1);
+                    }
+                    else {
+                        swapPixels(pixelMap[pixel.x+1][pixel.y-2], pixelMap[pixel.x+1][pixel.y-1]);
+                    }
+                }
+            }
+            if (!isEmpty(pixel.x+2, pixel.y-2, true)) { 
+                var cube2 = pixelMap[pixel.x+2][pixel.y-2];
+                if (cube2.element == "steel") {
+                    if (isEmpty(pixel.x+2, pixel.y-1)) {
+                        movePixel(pixelMap[pixel.x+2][pixel.y-2], pixel.x+2, pixel.y-1);
+                    }
+                    else {
+                        swapPixels(pixelMap[pixel.x+2][pixel.y-2], pixelMap[pixel.x+2][pixel.y-1]);
+                    }
+                }
+            }
+            if (!isEmpty(pixel.x-1, pixel.y-2, true)) { 
+                var cube2 = pixelMap[pixel.x-1][pixel.y-2];
+                if (cube2.element == "steel") {
+                    if (isEmpty(pixel.x-1, pixel.y-1)) {
+                        movePixel(pixelMap[pixel.x-1][pixel.y-2], pixel.x-1, pixel.y-1);
+                    }
+                    else {
+                        swapPixels(pixelMap[pixel.x-1][pixel.y-2], pixelMap[pixel.x-1][pixel.y-1]);
+                    }
+                }
+            }
+            if (!isEmpty(pixel.x-2, pixel.y-2, true)) { 
+                var cube2 = pixelMap[pixel.x-2][pixel.y-2];
+                if (cube2.element == "steel") {
+                    if (isEmpty(pixel.x-2, pixel.y-1)) {
+                        movePixel(pixelMap[pixel.x-2][pixel.y-2], pixel.x-2, pixel.y-1);
+                    }
+                    else {
+                        swapPixels(pixelMap[pixel.x-2][pixel.y-2], pixelMap[pixel.x-2][pixel.y-1]);
+                    }
+                }
+            }
+        }
+    }
+}
+
+elements.wood_cube = {
+    color: "#a0522d",
+    behavior: behaviors.WALL,
+    renderer: renderPresets.WOODCHAR,
+    tempHigh: 400,
+    stateHigh: ["ember","charcoal","fire","fire","fire"],
+    category: "cubes",
+    burn: 5,
+    burnTime: 300,
+    burnInto: ["ember","charcoal","fire"],
+    state: "solid",
+    hardness: 0.15,
+    breakInto: "sawdust",
+    forceSaveColor: true,
+    tick: function(pixel) {
+        if (tryMove(pixel, pixel.x, pixel.y+1)) { // Fall
+            if (!isEmpty(pixel.x, pixel.y-2, true)) { 
+                var cube2 = pixelMap[pixel.x][pixel.y-2];
+                if (cube2.element == "wood") {
+                    if (isEmpty(pixel.x, pixel.y-1)) {
+                        movePixel(pixelMap[pixel.x][pixel.y-2], pixel.x, pixel.y-1);
+                    }
+                    else {
+                        swapPixels(pixelMap[pixel.x][pixel.y-2], pixelMap[pixel.x][pixel.y-1]);
+                    }
+                }
+            }
+            if (!isEmpty(pixel.x+1, pixel.y-1, true)) { 
+                var cube2 = pixelMap[pixel.x+1][pixel.y-1];
+                if (cube2.element == "wood") {
+                    if (isEmpty(pixel.x+1, pixel.y)) {
+                        movePixel(pixelMap[pixel.x+1][pixel.y-1], pixel.x+1, pixel.y);
+                    }
+                    else {
+                        swapPixels(pixelMap[pixel.x+1][pixel.y-1], pixelMap[pixel.x+1][pixel.y]);
+                    }
+                }
+            }
+            if (!isEmpty(pixel.x+2, pixel.y-1, true)) { 
+                var cube2 = pixelMap[pixel.x+2][pixel.y-1];
+                if (cube2.element == "wood") {
+                    if (isEmpty(pixel.x+2, pixel.y)) {
+                        movePixel(pixelMap[pixel.x+2][pixel.y-1], pixel.x+2, pixel.y);
+                    }
+                    else {
+                        swapPixels(pixelMap[pixel.x+2][pixel.y-1], pixelMap[pixel.x+2][pixel.y]);
+                    }
+                }
+            }
+            if (!isEmpty(pixel.x-1, pixel.y-1, true)) { 
+                var cube2 = pixelMap[pixel.x-1][pixel.y-1];
+                if (cube2.element == "wood") {
+                    if (isEmpty(pixel.x-1, pixel.y)) {
+                        movePixel(pixelMap[pixel.x-1][pixel.y-1], pixel.x-1, pixel.y);
+                    }
+                    else {
+                        swapPixels(pixelMap[pixel.x-1][pixel.y-1], pixelMap[pixel.x-1][pixel.y]);
+                    }
+                }
+            }
+            if (!isEmpty(pixel.x-2, pixel.y-1, true)) { 
+                var cube2 = pixelMap[pixel.x-2][pixel.y-1];
+                if (cube2.element == "wood") {
+                    if (isEmpty(pixel.x-2, pixel.y)) {
+                        movePixel(pixelMap[pixel.x-2][pixel.y-1], pixel.x-2, pixel.y);
+                    }
+                    else {
+                        swapPixels(pixelMap[pixel.x-2][pixel.y-1], pixelMap[pixel.x-2][pixel.y]);
+                    }
+                }
+            }
+            if (!isEmpty(pixel.x+1, pixel.y-2, true)) { 
+                var cube2 = pixelMap[pixel.x+1][pixel.y-2];
+                if (cube2.element == "wood") {
+                    if (isEmpty(pixel.x+1, pixel.y-1)) {
+                        movePixel(pixelMap[pixel.x+1][pixel.y-2], pixel.x+1, pixel.y-1);
+                    }
+                    else {
+                        swapPixels(pixelMap[pixel.x+1][pixel.y-2], pixelMap[pixel.x+1][pixel.y-1]);
+                    }
+                }
+            }
+            if (!isEmpty(pixel.x+2, pixel.y-2, true)) { 
+                var cube2 = pixelMap[pixel.x+2][pixel.y-2];
+                if (cube2.element == "wood") {
+                    if (isEmpty(pixel.x+2, pixel.y-1)) {
+                        movePixel(pixelMap[pixel.x+2][pixel.y-2], pixel.x+2, pixel.y-1);
+                    }
+                    else {
+                        swapPixels(pixelMap[pixel.x+2][pixel.y-2], pixelMap[pixel.x+2][pixel.y-1]);
+                    }
+                }
+            }
+            if (!isEmpty(pixel.x-1, pixel.y-2, true)) { 
+                var cube2 = pixelMap[pixel.x-1][pixel.y-2];
+                if (cube2.element == "wood") {
+                    if (isEmpty(pixel.x-1, pixel.y-1)) {
+                        movePixel(pixelMap[pixel.x-1][pixel.y-2], pixel.x-1, pixel.y-1);
+                    }
+                    else {
+                        swapPixels(pixelMap[pixel.x-1][pixel.y-2], pixelMap[pixel.x-1][pixel.y-1]);
+                    }
+                }
+            }
+            if (!isEmpty(pixel.x-2, pixel.y-2, true)) { 
+                var cube2 = pixelMap[pixel.x-2][pixel.y-2];
+                if (cube2.element == "wood") {
+                    if (isEmpty(pixel.x-2, pixel.y-1)) {
+                        movePixel(pixelMap[pixel.x-2][pixel.y-2], pixel.x-2, pixel.y-1);
+                    }
+                    else {
+                        swapPixels(pixelMap[pixel.x-2][pixel.y-2], pixelMap[pixel.x-2][pixel.y-1]);
+                    }
+                }
+            }
+        }
+    }
+}
\ No newline at end of file