diff --git a/src/net/torvald/terrarum/LoadScreenBase.kt b/src/net/torvald/terrarum/LoadScreenBase.kt
new file mode 100644
index 000000000..42bc91092
--- /dev/null
+++ b/src/net/torvald/terrarum/LoadScreenBase.kt
@@ -0,0 +1,67 @@
+package net.torvald.terrarum
+
+import com.badlogic.gdx.Gdx
+import com.badlogic.gdx.ScreenAdapter
+import com.badlogic.gdx.graphics.OrthographicCamera
+import net.torvald.util.CircularArray
+
+open class LoadScreenBase : ScreenAdapter() {
+
+    open var screenToLoad: IngameInstance? = null
+    open lateinit var screenLoadingThread: Thread
+
+    internal val messages = CircularArray<String>(20, true)
+
+    fun addMessage(msg: String) {
+        messages.appendHead(msg)
+    }
+
+    internal var errorTrapped = false
+    internal var doContextChange = false
+
+    var camera = OrthographicCamera(AppLoader.screenW.toFloat(), AppLoader.screenH.toFloat())
+
+    override fun show() {
+        messages.clear()
+        doContextChange = false
+
+        if (screenToLoad == null) {
+            println("[LoadScreen] Screen to load is not set. Are you testing the UI?")
+        }
+        else {
+            val runnable = {
+                try {
+                    screenToLoad!!.show()
+                }
+                catch (e: Exception) {
+                    addMessage("$ccR$e")
+                    errorTrapped = true
+
+                    System.err.println("Error while loading:")
+                    e.printStackTrace()
+                }
+            }
+            screenLoadingThread = Thread(runnable, "LoadScreen GameLoader")
+
+            screenLoadingThread.start()
+        }
+
+
+        initViewPort(AppLoader.screenW, AppLoader.screenH)
+    }
+
+    fun initViewPort(width: Int, height: Int) {
+        // Set Y to point downwards
+        camera.setToOrtho(true, width.toFloat(), height.toFloat())
+
+        // Update camera matrix
+        camera.update()
+
+        // Set viewport to restrict drawing
+        Gdx.gl20.glViewport(0, 0, width, height)
+    }
+
+    override fun resize(width: Int, height: Int) {
+        initViewPort(AppLoader.screenW, AppLoader.screenH)
+    }
+}
\ No newline at end of file
diff --git a/src/net/torvald/terrarum/LoadScreen.kt b/src/net/torvald/terrarum/SanicLoadScreen.kt
similarity index 84%
rename from src/net/torvald/terrarum/LoadScreen.kt
rename to src/net/torvald/terrarum/SanicLoadScreen.kt
index 48e39be28..5a033ad8b 100644
--- a/src/net/torvald/terrarum/LoadScreen.kt
+++ b/src/net/torvald/terrarum/SanicLoadScreen.kt
@@ -14,19 +14,7 @@ import net.torvald.util.CircularArray
 /**
  * Created by minjaesong on 2017-07-13.
  */
-object LoadScreen : ScreenAdapter() {
-
-    var screenToLoad: IngameInstance? = null
-    private lateinit var screenLoadingThread: Thread
-
-
-    private val messages = CircularArray<String>(20, true)
-
-    fun addMessage(msg: String) {
-        messages.appendHead(msg)
-    }
-
-
+object LoadScreen : LoadScreenBase() {
 
     private var arrowObjPos = 0f // 0 means at starting position, regardless of screen position
     private var arrowObjGlideOffsetX = 0f
@@ -47,52 +35,11 @@ object LoadScreen : ScreenAdapter() {
     private val ghostMaxZoomX = 1.25f
     private val ghostAlphaMax = 1f
 
-    var camera = OrthographicCamera(AppLoader.screenW.toFloat(), AppLoader.screenH.toFloat())
-
-    fun initViewPort(width: Int, height: Int) {
-        // Set Y to point downwards
-        camera.setToOrtho(true, width.toFloat(), height.toFloat())
-
-        // Update camera matrix
-        camera.update()
-
-        // Set viewport to restrict drawing
-        Gdx.gl20.glViewport(0, 0, width, height)
-    }
-
-
-    private var errorTrapped = false
-
 
     override fun show() {
-        messages.clear()
-        doContextChange = false
         glideTimer = 0f
 
-
-        if (screenToLoad == null) {
-            println("[LoadScreen] Screen to load is not set. Are you testing the UI?")
-        }
-        else {
-            val runnable = {
-                try {
-                    screenToLoad!!.show()
-                }
-                catch (e: Exception) {
-                    addMessage("$ccR$e")
-                    errorTrapped = true
-
-                    System.err.println("Error while loading:")
-                    e.printStackTrace()
-                }
-            }
-            screenLoadingThread = Thread(runnable, "LoadScreen GameLoader")
-
-            screenLoadingThread.start()
-        }
-
-
-        initViewPort(AppLoader.screenW, AppLoader.screenH)
+        super.show()
 
         textFbo = FrameBuffer(
                 Pixmap.Format.RGBA4444,
@@ -114,7 +61,6 @@ object LoadScreen : ScreenAdapter() {
     val textX: Float; get() = (AppLoader.screenW * 0.72f).floor()
 
     private var genuineSonic = false // the "NOW LOADING..." won't appear unless the arrow first run passes it  (it's totally not a GenuineIntel tho)
-    private var doContextChange = false
 
     private var messageBackgroundColour = Color(0x404040ff)
     private var messageForegroundColour = Color.WHITE
@@ -316,8 +262,4 @@ object LoadScreen : ScreenAdapter() {
 
     override fun hide() {
     }
-
-    override fun resize(width: Int, height: Int) {
-        initViewPort(AppLoader.screenW, AppLoader.screenH)
-    }
 }
\ No newline at end of file
diff --git a/src/net/torvald/terrarum/modulebasegame/TerrarumIngame.kt b/src/net/torvald/terrarum/modulebasegame/TerrarumIngame.kt
index a2606b4f3..4da04a5a1 100644
--- a/src/net/torvald/terrarum/modulebasegame/TerrarumIngame.kt
+++ b/src/net/torvald/terrarum/modulebasegame/TerrarumIngame.kt
@@ -169,6 +169,8 @@ open class TerrarumIngame(batch: SpriteBatch) : IngameInstance(batch) {
     lateinit var theRealGamer: IngamePlayer
         // get() = actorGamer as IngamePlayer
 
+
+
     enum class GameLoadMode {
         CREATE_NEW, LOAD_FROM
     }
diff --git a/src/net/torvald/terrarum/modulebasegame/WorldgenLoadScreen.kt b/src/net/torvald/terrarum/modulebasegame/WorldgenLoadScreen.kt
index c7d32f4d0..be0888240 100644
--- a/src/net/torvald/terrarum/modulebasegame/WorldgenLoadScreen.kt
+++ b/src/net/torvald/terrarum/modulebasegame/WorldgenLoadScreen.kt
@@ -3,8 +3,7 @@ package net.torvald.terrarum.modulebasegame
 import com.badlogic.gdx.ScreenAdapter
 import com.badlogic.gdx.graphics.Pixmap
 import com.badlogic.gdx.graphics.Texture
-import net.torvald.terrarum.AppLoader
-import net.torvald.terrarum.IngameInstance
+import net.torvald.terrarum.*
 import net.torvald.terrarum.gameworld.GameWorld
 import net.torvald.util.CircularArray
 import kotlin.math.roundToInt
@@ -14,10 +13,12 @@ import kotlin.math.roundToInt
  *
  * Created by minjaesong on 2019-11-09.
  */
-class WorldgenLoadScreen(private var world: GameWorld, private var screenToLoad: IngameInstance) : ScreenAdapter() {
+class WorldgenLoadScreen(private val world: GameWorld, screenToBeLoaded: IngameInstance) : LoadScreenBase() {
 
     // a Class impl is chosen to make resize-handling easier, there's not much benefit making this a singleton anyway
 
+    override var screenToLoad: IngameInstance? = screenToBeLoaded
+
     companion object {
         private const val WIDTH_RATIO = 0.6
     }
@@ -25,13 +26,9 @@ class WorldgenLoadScreen(private var world: GameWorld, private var screenToLoad:
     private val previewWidth = (AppLoader.screenW * WIDTH_RATIO).roundToInt()
     private val previewHeight = (AppLoader.screenW * WIDTH_RATIO * world.height / world.width).roundToInt()
 
-    private lateinit var screenLoadingThread: Thread
-
     private lateinit var previewPixmap: Pixmap
     private lateinit var previewTexture: Texture
 
-    private val messages = CircularArray<String>(20, true) // this many texts will be shown at once
-
     override fun show() {
         previewPixmap = Pixmap(previewWidth, previewHeight, Pixmap.Format.RGBA8888)
         previewTexture = Texture(1, 1, Pixmap.Format.RGBA8888)
@@ -42,6 +39,12 @@ class WorldgenLoadScreen(private var world: GameWorld, private var screenToLoad:
         previewTexture = Texture(previewPixmap)
 
         //
+        AppLoader.batch.inUse {
+            it.draw(previewTexture,
+                    (AppLoader.screenW - previewWidth).div(2f).round(),
+                    (AppLoader.screenH - previewHeight.times(1.25f)).div(2f).round()
+            )
+        }
     }
 
     override fun dispose() {
diff --git a/src/net/torvald/terrarum/modulebasegame/worldgenerator/Terragen.kt b/src/net/torvald/terrarum/modulebasegame/worldgenerator/Terragen.kt
index c755c86c0..04bf1b26c 100644
--- a/src/net/torvald/terrarum/modulebasegame/worldgenerator/Terragen.kt
+++ b/src/net/torvald/terrarum/modulebasegame/worldgenerator/Terragen.kt
@@ -2,7 +2,9 @@ package net.torvald.terrarum.modulebasegame.worldgenerator
 
 import com.sudoplay.joise.Joise
 import com.sudoplay.joise.module.*
+import net.torvald.terrarum.AppLoader
 import net.torvald.terrarum.AppLoader.printdbg
+import net.torvald.terrarum.LoadScreen
 import net.torvald.terrarum.blockproperties.Block
 import net.torvald.terrarum.concurrent.ThreadExecutor
 import net.torvald.terrarum.gameworld.GameWorld
@@ -28,7 +30,10 @@ class Terragen(world: GameWorld, seed: Long, params: Any) : Gen(world, seed, par
         // single-threaded impl because I couldn't resolve multithread memory corruption issue...
         genFuture = ThreadExecutor.submit {
             for (x in 0 until world.width) {
-                printdbg(this, "Tile draw for x=$x")
+
+                if (AppLoader.IS_DEVELOPMENT_BUILD)
+                    LoadScreen.addMessage("Tile draw for x=$x")
+
                 for (y in 0 until world.height) {
                     val sampleTheta = (x.toDouble() / world.width) * TWO_PI
                     val sampleOffset = world.width / 8.0