diff --git a/data/entities.yaml b/data/entities.yaml
index cb1f03737..d8d165148 100644
--- a/data/entities.yaml
+++ b/data/entities.yaml
@@ -161,6 +161,33 @@
   - An iron vein that can be actively mined to produce iron ore.
   properties: []
 
+- name: quartz
+  display:
+    attr: quartz
+    char: 'Q'
+  description:
+  - Raw quartz crystals.  Useful for creating devices like clocks, and
+    can be processed to extract silicon.
+  - It can only be mined by drilling in the mountains.
+  properties: [portable]
+
+- name: quartz mine
+  display:
+    attr: quartz
+    char: 'Å'
+  description:
+  - An quartz vein that can be actively mined to produce quartz.
+  properties: []
+
+- name: silicon
+  display:
+    attr: quartz
+    char: 'S'
+  description:
+  - Extracted by processing quartz at high temperatures, silicon can
+    be used to construct integrated circuits.
+  properties: [portable]
+
 - name: furnace
   display:
     attr: fire
@@ -169,6 +196,15 @@
   - A furnace can be used to turn metal ore into various useful products.
   properties: [portable]
 
+- name: big furnace
+  display:
+    attr: fire
+    char: '#'
+  description:
+  - A big furnace can get even hotter than a normal furnace, and can be used
+    to process quartz into silicon.
+  properties: [portable]
+
 - name: small motor
   display:
     attr: entity
@@ -287,6 +323,50 @@
   properties: [portable, growable]
   growth: [1000, 1500]
 
+- name: pixel (R)
+  display:
+    attr: red
+    char: '.'
+  description:
+  - A pixel.
+  properties: [portable, growable]
+  growth: [1000, 1500]
+
+- name: pixel (G)
+  display:
+    attr: green
+    char: '.'
+  description:
+  - A pixel.
+  properties: [portable, growable]
+  growth: [1000, 1500]
+
+- name: pixel (B)
+  display:
+    attr: blue
+    char: '.'
+  description:
+  - A pixel.
+  properties: [portable, growable]
+  growth: [1000, 1500]
+
+- name: camera
+  display:
+    attr: device
+    char: '@'
+  description:
+  - A camera.
+  properties: [portable]
+
+- name: circuit
+  display:
+    attr: plant
+    char: '#'
+  description:
+  - |
+    A circuit is needed for constructing "smart" devices.
+  properties: [portable]
+
 - name: drill bit
   display:
     attr: entity
@@ -311,6 +391,15 @@
   - A wooden gear.
   properties: [portable]
 
+- name: teeter-totter
+  display:
+    attr: wood
+    char: '/'
+  description:
+  - A rotating board apparently popular with young aliens.  Perhaps it
+    could also be used as a primitive balance scale.
+  properties: [portable]
+
 - name: iron gear
   display:
     attr: iron
@@ -638,4 +727,23 @@
   - "Example:"
   - "turn west; move; turn north"
   properties: [portable]
-  capabilities: [orient]
\ No newline at end of file
+  capabilities: [orient]
+
+- name: clock
+  display:
+    attr: device
+    char: '0'
+  description:
+  - A clock is a device for keeping track of time.
+  properties: [portable]
+
+- name: comparator
+  display:
+    attr: device
+    char: '>'
+  description:
+  - "A comparator allows comparing two values to see whether the first
+    is less, equal, or greater than the second."
+  - "Valid comparison operators are <, <=, >, >=, ==, and !=."
+  properties: [portable]
+  capabilities: [compare]
\ No newline at end of file
diff --git a/data/recipes.yaml b/data/recipes.yaml
index 9a3976529..1dd6fd5d8 100644
--- a/data/recipes.yaml
+++ b/data/recipes.yaml
@@ -44,6 +44,18 @@
   out:
   - [1, wooden gear]
 
+- in:
+  - [1, board]
+  - [2, wooden gear]
+  out:
+  - [1, teeter-totter]
+
+- in:
+  - [1, teeter-totter]
+  - [2, copper wire]
+  out:
+  - [1, comparator]
+
 #########################################
 ##                BITS                 ##
 #########################################
@@ -82,6 +94,23 @@
   time: 9
   weight: 1
 
+- in:
+  - [1, boulder]
+  out:
+  - [3, rock]
+  required:
+  - [1, metal drill]
+  time: 3
+  weight: 3
+
+- in:
+  - [1, boulder]
+  out:
+  - [4, rock]
+  required:
+  - [1, metal drill]
+  time: 3
+  weight: 3
 
 - in:
   - [1, mountain]
@@ -91,7 +120,7 @@
   required:
   - [1, drill]
   time: 90
-  weight: 8
+  weight: 16
 
 - in:
   - [1, mountain]
@@ -101,13 +130,19 @@
   required:
   - [1, metal drill]
   time: 9
-  weight: 8
+  weight: 16
 
 - in:
   - [5, rock]
   out:
   - [1, furnace]
 
+- in:
+  - [10, rock]
+  - [10, solar panel]
+  out:
+  - [1, big furnace]
+
 #########################################
 ##                 METAL               ##
 #########################################
@@ -122,7 +157,7 @@
   required:
   - [1, drill]
   time: 42
-  weight: 1
+  weight: 2
 
 - in:
   - [1, mountain]
@@ -132,6 +167,16 @@
   required:
   - [1, drill]
   time: 64
+  weight: 2
+
+- in:
+  - [1, mountain]
+  out:
+  - [1, quartz mine]
+  - [1, quartz]
+  required:
+  - [1, drill]
+  time: 64
   weight: 1
 
 - in:
@@ -154,6 +199,16 @@
   time: 7
   weight: 1
 
+- in:
+  - [1, mountain]
+  out:
+  - [1, quartz mine]
+  - [1, quartz]
+  required:
+  - [1, metal drill]
+  time: 7
+  weight: 1
+
 ## MINES
 
 - in:
@@ -174,6 +229,15 @@
   - [1, drill]
   time: 64
 
+- in:
+  - [1, quartz mine]
+  out:
+  - [1, quartz]
+  - [1, quartz mine]
+  required:
+  - [1, drill]
+  time: 64
+
 - in:
   - [1, copper mine]
   out:
@@ -192,6 +256,15 @@
   - [1, metal drill]
   time: 7
 
+- in:
+  - [1, quartz mine]
+  out:
+  - [1, quartz]
+  - [1, quartz mine]
+  required:
+  - [1, metal drill]
+  time: 7
+
 ## SMELTING
 
 - in:
@@ -265,6 +338,51 @@
   out:
   - [1, strange loop]
 
+#########################################
+##           QUARTZ + SILICON          ##
+#########################################
+
+- in:
+  - [4, quartz]
+  out:
+  - [1, silicon]
+  required:
+  - [1, big furnace]
+
+- in:
+  - [1, quartz]
+  - [32, iron gear]
+  - [1, glass]
+  out:
+  - [1, clock]
+
+- in:
+  - [4, silicon]
+  - [1, strange loop]
+  - [16, copper wire]
+  - [8, bit (0)]
+  - [8, bit (1)]
+  out:
+  - [1, circuit]
+
+#########################################
+##               PIXELS                ##
+#########################################
+
+- in:
+  - [1, glass]
+  - [10, pixel (R)]
+  - [10, pixel (G)]
+  - [10, pixel (B)]
+  out:
+  - [1, camera]
+
+- in:
+  - [1, camera]
+  - [1, circuit]
+  out:
+  - [1, scanner]
+
 #########################################
 ##                  SAND               ##
 #########################################
diff --git a/src/Swarm/Game/WorldGen.hs b/src/Swarm/Game/WorldGen.hs
index 3c08f24d7..ea6555670 100644
--- a/src/Swarm/Game/WorldGen.hs
+++ b/src/Swarm/Game/WorldGen.hs
@@ -79,6 +79,7 @@ testWorld2 baseSeed (Coords ix@(r, c)) =
     | otherwise = (DirtT, Nothing)
   genBiome Small Hard Artificial
     | h `mod` 120 == 1 = (StoneT, Just "lambda")
+    | h `mod` 50 == 0 = (StoneT, Just (T.concat ["pixel (", from ["RGB" !! fromIntegral ((r + c) `mod` 3)], ")"]))
     | otherwise = (StoneT, Nothing)
   genBiome Big Hard Artificial
     | sample ix cl0 > 0.85 = (StoneT, Just "copper ore")
diff --git a/src/Swarm/TUI/Attr.hs b/src/Swarm/TUI/Attr.hs
index 509e84ade..950fe79b9 100644
--- a/src/Swarm/TUI/Attr.hs
+++ b/src/Swarm/TUI/Attr.hs
@@ -40,9 +40,13 @@ swarmAttrMap =
     , (copperAttr', fg (V.rgbColor @Int 78 117 102))
     , (ironAttr, fg (V.rgbColor @Int 97 102 106))
     , (ironAttr', fg (V.rgbColor @Int 183 65 14))
+    , (quartzAttr, fg V.white)
     , (snowAttr, fg V.white)
     , (sandAttr, fg (V.rgbColor @Int 194 178 128))
     , (fireAttr, fg V.red `V.withStyle` V.bold)
+    , (redAttr, fg V.red)
+    , (greenAttr, fg V.green)
+    , (blueAttr, fg V.blue)
     , (deviceAttr, fg V.yellow `V.withStyle` V.bold)
     , -- Terrain attributes
       (dirtAttr, fg (V.rgbColor @Int 165 42 42))
@@ -70,11 +74,15 @@ robotAttr
   , copperAttr'
   , ironAttr
   , ironAttr'
+  , quartzAttr
   , snowAttr
   , sandAttr
   , rockAttr
   , baseAttr
   , fireAttr
+  , redAttr
+  , greenAttr
+  , blueAttr
   , woodAttr
   , deviceAttr
   , dirtAttr
@@ -100,9 +108,13 @@ copperAttr = "copper"
 copperAttr' = "copper'"
 ironAttr = "iron"
 ironAttr' = "iron'"
+quartzAttr = "quartz"
 snowAttr = "snow"
 sandAttr = "sand"
 fireAttr = "fire"
+redAttr = "red"
+greenAttr = "green"
+blueAttr = "blue"
 rockAttr = "rock"
 woodAttr = "wood"
 baseAttr = "base"