diff --git a/core/src/com/unciv/civinfo/CivilizationInfo.java b/core/src/com/unciv/civinfo/CivilizationInfo.java
index 88e5a9b5..59a3983e 100644
--- a/core/src/com/unciv/civinfo/CivilizationInfo.java
+++ b/core/src/com/unciv/civinfo/CivilizationInfo.java
@@ -59,7 +59,7 @@ public class CivilizationInfo {
         });
     }
 
-    public void nextTurn()//out boolean displayTech)
+    public void nextTurn()
     {
         notifications.clear();
         CivStats nextTurnStats = getStatsForNextTurn();
diff --git a/core/src/com/unciv/game/HexMath.java b/core/src/com/unciv/game/HexMath.java
index e74b2e4b..ef5c1915 100644
--- a/core/src/com/unciv/game/HexMath.java
+++ b/core/src/com/unciv/game/HexMath.java
@@ -48,6 +48,7 @@ public class HexMath
 
     public static ArrayList<Vector2> GetVectorsAtDistance(Vector2 origin, int distance){
         ArrayList<Vector2> vectors = new ArrayList<Vector2>();
+        if(distance==0){vectors.add(origin.cpy()); return  vectors;}
         Vector2 Current = origin.cpy().sub(distance,distance); // start at 6 o clock
         for (int i = 0; i < distance; i++) { // From 6 to 8
             vectors.add(Current.cpy());
@@ -62,7 +63,7 @@ public class HexMath
         for (int i = 0; i < distance; i++) { // 10 to 12
             vectors.add(Current.cpy());
             vectors.add(origin.cpy().scl(2).sub(Current)); // Get vector on other side of cloick
-            Current.add(1,1);
+            Current.add(0,1);
         };
         return vectors;
     }
diff --git a/core/src/com/unciv/game/WorldScreen.java b/core/src/com/unciv/game/WorldScreen.java
index d82ffc2a..830742b2 100644
--- a/core/src/com/unciv/game/WorldScreen.java
+++ b/core/src/com/unciv/game/WorldScreen.java
@@ -96,7 +96,6 @@ public class WorldScreen extends CameraStageBaseScreen {
     public void update(){
         if(game.civInfo.tech.freeTechs!=0) {
             game.setScreen(new TechPickerScreen(game, true));
-            return;
         }
         updateTechButton();
         updateTileTable();
diff --git a/core/src/com/unciv/game/pickerscreens/TechPickerScreen.java b/core/src/com/unciv/game/pickerscreens/TechPickerScreen.java
index 821e478a..bc9be609 100644
--- a/core/src/com/unciv/game/pickerscreens/TechPickerScreen.java
+++ b/core/src/com/unciv/game/pickerscreens/TechPickerScreen.java
@@ -93,14 +93,10 @@ public class TechPickerScreen extends PickerScreen {
             StringBuilder text = new StringBuilder(techName);
 
             if (selectedTech != null) {
-                Technology thisTech = GameBasics.Technologies.get(techName);
                 if (techName.equals(selectedTech.name)) {
                     TB.setChecked(true);
                     TB.setColor(TB.getColor().lerp(Color.LIGHT_GRAY, 0.5f));
                 }
-
-                if (thisTech.prerequisites.contains(selectedTech.name)) text.insert(0, "*");
-                else if (selectedTech.prerequisites.contains(techName)) text.append("*");
             }
             if (techsToResearch.contains(techName)) {
                 text.append(" (").append(techsToResearch.indexOf(techName)).append(")");