diff --git a/android/Images.Tech/TechIcons/Fallback.png b/android/Images.Tech/TechIcons/Fallback.png
new file mode 100644
index 0000000000..9666b9a254
Binary files /dev/null and b/android/Images.Tech/TechIcons/Fallback.png differ
diff --git a/android/assets/Tech.atlas b/android/assets/Tech.atlas
index 610a6f4935..8f42769075 100644
--- a/android/assets/Tech.atlas
+++ b/android/assets/Tech.atlas
@@ -221,360 +221,367 @@ TechIcons/Engineering
   orig: 100, 100
   offset: 0, 0
   index: -1
-TechIcons/Fertilizer
+TechIcons/Fallback
   rotate: false
   xy: 328, 436
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
   index: -1
-TechIcons/Flight
+TechIcons/Fertilizer
   rotate: false
   xy: 436, 544
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
   index: -1
-TechIcons/Future Tech
+TechIcons/Flight
   rotate: false
   xy: 544, 652
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
   index: -1
-TechIcons/Globalization
+TechIcons/Future Tech
   rotate: false
   xy: 652, 760
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
   index: -1
-TechIcons/Guilds
+TechIcons/Globalization
   rotate: false
   xy: 760, 868
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
   index: -1
-TechIcons/Gunpowder
+TechIcons/Guilds
   rotate: false
   xy: 4, 4
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
   index: -1
-TechIcons/Horseback Riding
+TechIcons/Gunpowder
   rotate: false
   xy: 112, 112
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
   index: -1
-TechIcons/Industrialization
+TechIcons/Horseback Riding
   rotate: false
   xy: 220, 220
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
   index: -1
-TechIcons/Iron Working
+TechIcons/Industrialization
   rotate: false
   xy: 328, 328
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
   index: -1
-TechIcons/Lasers
+TechIcons/Iron Working
   rotate: false
   xy: 436, 436
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
   index: -1
-TechIcons/Machinery
+TechIcons/Lasers
   rotate: false
   xy: 544, 544
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
   index: -1
-TechIcons/Masonry
+TechIcons/Machinery
   rotate: false
   xy: 652, 652
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
   index: -1
-TechIcons/Mass Media
+TechIcons/Masonry
   rotate: false
   xy: 760, 760
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
   index: -1
-TechIcons/Mathematics
+TechIcons/Mass Media
   rotate: false
   xy: 868, 868
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
   index: -1
-TechIcons/Metal Casting
+TechIcons/Mathematics
   rotate: false
   xy: 112, 4
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
   index: -1
-TechIcons/Metallurgy
+TechIcons/Metal Casting
   rotate: false
   xy: 220, 112
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
   index: -1
-TechIcons/Military Science
+TechIcons/Metallurgy
   rotate: false
   xy: 328, 220
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
   index: -1
-TechIcons/Mining
+TechIcons/Military Science
   rotate: false
   xy: 436, 328
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
   index: -1
-TechIcons/Mobile Tactics
+TechIcons/Mining
   rotate: false
   xy: 544, 436
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
   index: -1
-TechIcons/Nanotechnology
+TechIcons/Mobile Tactics
   rotate: false
   xy: 652, 544
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
   index: -1
-TechIcons/Navigation
+TechIcons/Nanotechnology
   rotate: false
   xy: 760, 652
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
   index: -1
-TechIcons/Nuclear Fission
+TechIcons/Navigation
   rotate: false
   xy: 868, 760
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
   index: -1
-TechIcons/Nuclear Fusion
+TechIcons/Nuclear Fission
   rotate: false
   xy: 976, 868
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
   index: -1
-TechIcons/Optics
+TechIcons/Nuclear Fusion
   rotate: false
   xy: 220, 4
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
   index: -1
-TechIcons/Particle Physics
+TechIcons/Optics
   rotate: false
   xy: 328, 112
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
   index: -1
-TechIcons/Pharmaceuticals
+TechIcons/Particle Physics
   rotate: false
   xy: 436, 220
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
   index: -1
-TechIcons/Philosophy
+TechIcons/Pharmaceuticals
   rotate: false
   xy: 544, 328
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
   index: -1
-TechIcons/Physics
+TechIcons/Philosophy
   rotate: false
   xy: 652, 436
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
   index: -1
-TechIcons/Plastics
+TechIcons/Physics
   rotate: false
   xy: 760, 544
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
   index: -1
-TechIcons/Pottery
+TechIcons/Plastics
   rotate: false
   xy: 868, 652
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
   index: -1
-TechIcons/Printing Press
+TechIcons/Pottery
   rotate: false
   xy: 976, 760
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
   index: -1
-TechIcons/Radar
+TechIcons/Printing Press
   rotate: false
   xy: 1084, 868
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
   index: -1
-TechIcons/Radio
+TechIcons/Radar
   rotate: false
   xy: 328, 4
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
   index: -1
-TechIcons/Railroads
+TechIcons/Radio
   rotate: false
   xy: 436, 112
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
   index: -1
-TechIcons/Refrigeration
+TechIcons/Railroads
   rotate: false
   xy: 544, 220
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
   index: -1
-TechIcons/Replaceable Parts
+TechIcons/Refrigeration
   rotate: false
   xy: 652, 328
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
   index: -1
-TechIcons/Rifling
+TechIcons/Replaceable Parts
   rotate: false
   xy: 760, 436
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
   index: -1
-TechIcons/Robotics
+TechIcons/Rifling
   rotate: false
   xy: 868, 544
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
   index: -1
-TechIcons/Rocketry
+TechIcons/Robotics
   rotate: false
   xy: 976, 652
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
   index: -1
-TechIcons/Sailing
+TechIcons/Rocketry
   rotate: false
   xy: 1084, 760
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
   index: -1
-TechIcons/Satellites
+TechIcons/Sailing
   rotate: false
   xy: 1192, 868
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
   index: -1
-TechIcons/Scientific Theory
+TechIcons/Satellites
   rotate: false
   xy: 436, 4
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
   index: -1
-TechIcons/Stealth
+TechIcons/Scientific Theory
   rotate: false
   xy: 544, 112
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
   index: -1
-TechIcons/Steam Power
+TechIcons/Stealth
   rotate: false
   xy: 652, 220
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
   index: -1
-TechIcons/Steel
+TechIcons/Steam Power
   rotate: false
   xy: 760, 328
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
   index: -1
-TechIcons/Telecommunications
+TechIcons/Steel
   rotate: false
   xy: 868, 436
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
   index: -1
-TechIcons/Telegraph
+TechIcons/Telecommunications
   rotate: false
   xy: 976, 544
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
   index: -1
-TechIcons/The Wheel
+TechIcons/Telegraph
   rotate: false
   xy: 1084, 652
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
   index: -1
-TechIcons/Theology
+TechIcons/The Wheel
   rotate: false
   xy: 1192, 760
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
   index: -1
-TechIcons/Trapping
+TechIcons/Theology
   rotate: false
   xy: 1300, 868
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
   index: -1
-TechIcons/Writing
+TechIcons/Trapping
   rotate: false
   xy: 544, 4
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
   index: -1
+TechIcons/Writing
+  rotate: false
+  xy: 652, 112
+  size: 100, 100
+  orig: 100, 100
+  offset: 0, 0
+  index: -1
diff --git a/android/assets/Tech.png b/android/assets/Tech.png
index 7ffb941ae0..fda80e89d7 100644
Binary files a/android/assets/Tech.png and b/android/assets/Tech.png differ
diff --git a/core/src/com/unciv/ui/images/ImageGetter.kt b/core/src/com/unciv/ui/images/ImageGetter.kt
index 59251cb4a8..34f3c8b549 100644
--- a/core/src/com/unciv/ui/images/ImageGetter.kt
+++ b/core/src/com/unciv/ui/images/ImageGetter.kt
@@ -370,9 +370,11 @@ object ImageGetter {
     }
 
     fun getTechIconGroup(techName: String, circleSize: Float): IconCircleGroup {
-        val techIconColor = ruleset.eras[ruleset.technologies[techName]?.era()]?.getColor()?.darken(0.6f)
-            ?: Color.BLACK
-        return getImage("TechIcons/$techName").apply { color = techIconColor }
+        val techIconColor = ruleset.eras[ruleset.technologies[techName]?.era()]?.getColor()?.darken(0.6f) ?: Color.BLACK
+        val image =
+                if (imageExists("TechIcons/$techName")) getImage("TechIcons/$techName")
+                else getImage("TechIcons/Fallback")
+        return image.apply { color = techIconColor }
             .surroundWithCircle(circleSize)
             .surroundWithThinCircle(techIconColor)
     }
diff --git a/docs/Credits.md b/docs/Credits.md
index 02d387a106..26d1c09715 100644
--- a/docs/Credits.md
+++ b/docs/Credits.md
@@ -435,6 +435,8 @@ Unless otherwise specified, all the following are from [the Noun Project](https:
 
 ### Technologies
 
+- [Lightbulb](https://thenounproject.com/icon/lightbulb-589680/) by Davo Sime for fallback image
+
 #### Ancient
 
 -   [Agriculture](https://thenounproject.com/term/agriculture/4221/) By OCHA Visual Information Unit