diff --git a/assets/graphics/fonts/fullwidth_forms.tga b/assets/graphics/fonts/fullwidth_forms.tga
index 2e8d91d8a..6938df1ed 100644
--- a/assets/graphics/fonts/fullwidth_forms.tga
+++ b/assets/graphics/fonts/fullwidth_forms.tga
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:84e663fc2db5eba3c92a5200805f2859840aa04f3b7bd9a888091c8997d03dbe
-size 98322
+oid sha256:060c9d150790911c96dfca393dc15422166ef2250060cded32f345610a53e06c
+size 98348
diff --git a/assets/modules/basegame/sprites/test_player.tga b/assets/modules/basegame/sprites/test_player.tga
index 611bfb907..6d55ce99e 100644
--- a/assets/modules/basegame/sprites/test_player.tga
+++ b/assets/modules/basegame/sprites/test_player.tga
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:de293cfb64d44e58ce8b003d8b995c63d9398af83e7a08e6f49f0345791c40e1
-size 5730
+oid sha256:0bd0fc3fbb44b7c15bf8a8b18fcebe1c276004a25050eced07cf42cc21233549
+size 5756
diff --git a/src/net/torvald/terrarum/StateFontTester.kt b/src/net/torvald/terrarum/StateFontTester.kt
index 55babc9c5..fa8c442c4 100644
--- a/src/net/torvald/terrarum/StateFontTester.kt
+++ b/src/net/torvald/terrarum/StateFontTester.kt
@@ -52,7 +52,7 @@ nopqrstuvwxyz
 
         //g.drawString("Syö salmiakkia perkele", 480f, 10f)
 
-        val text = arrayOf(
+        /*val text = arrayOf(
                 "The bitmap font for game developers who seek good font that has real multilingual support,",
                 "for free (as in freedom AND without cost).",
                 "",
@@ -88,6 +88,37 @@ nopqrstuvwxyz
                 "ASCII  Latin-1  Latin_Ext-A  Latin_Ext-B  Greek  Cyrillic  CJK-Ideo  Kana  Hangul_Syllables",
                 "",
                 "…not seeing your language/writing system? Let me know on the Issue Tracker!"
+        )*/
+        val text = arrayOf(
+                "x64またはx86-64とは、x86アーキテクチャを64ビットに拡張した命令セットアーキテクチャ。",
+                "実際には、AMDが発表したAMD64命令セット、続けてインテルが採用したIntel 64命令セット (かつてIA-32eまたはEM64Tと呼ばれていた)",
+                "などを含む、各社のAMD64互換命令セットの総称である。x86命令セットと互換性を持っていることから、広義にはx86にx64を含む場合がある。",
+                "",
+                "x86-64는 x86 명령어 집합 아키텍처의 64비트 모임이다. x86-64 명령어 집합은 에뮬레이션 없이 인텔의 x86를 지원하며 AMD64로 이름 붙인",
+                "AMD에 의해 고안되었다. 이 아키텍처는 인텔 64라는 이름으로 인텔에 의해 복제되기도 했다. (옘힐, 클래카마스 기술, CT, IA-32e, EM64T 등으로",
+                "불렸음) 이로써 x86-64 또는 x64의 이름을 일상적으로 사용하기에 이르렀다.",
+                "",
+                "x86-64 (также AMD64/Intel64/EM64T) — 64-битное расширение, набор команд для архитектуры x86, разработанное",
+                "компанией AMD, позволяющее выполнять программы в 64-разрядном режиме. Это расширение архитектуры x86 с",
+                "почти полной обратной совместимостью.",
+                "",
+                "Επίσης η x86-64 έχει καταχωρητές γενικής χρήσης 64-bit και πολλές άλλες βελτιώσεις. Η αρχική προδιαγραφή",
+                "δημιουργήθηκε από την AMD και έχει υλοποιηθεί από την AMD, την Intel, τη VIA και άλλες εταιρείες. Διατηρεί πλήρη",
+                "συμβατότητα προς τα πίσω με κώδικα 32-bit.",
+                "",
+                "x86-64 (簡稱x64) 是64位版本的x86指令集，向后相容於16位及32位的x86架構。x64於1999年由AMD設計，AMD首次公開",
+                "64位元集以擴充給x86，稱為「AMD64」。其後也為英特爾所採用，現時英特爾稱之為「Intel 64」，在之前曾使用過「Clackamas",
+                "Technology」 (CT)、「IA-32e」及「EM64T」",
+                "",
+                "x86-64, ou x64, est une extension du jeu d'instructions x86 d'Intel, introduite par la société AMD avec la gamme",
+                "AMD64. Intel utilisera cette extension en l'appelant initialement EM64T renommé aujourd'hui en Intel 64.",
+                "",
+                "Amd64 (також x86-64/intel64/em64t/x64) — 64-бітова архітектура мікропроцесора і відповідний набір інструкцій,",
+                "розроблені компанією AMD. Це розширення архітектури x86 з повною зворотною сумісністю.",
+                "",
+                "x86-64 е наименованието на наборът от 64-битови разширения към x86 процесорната архитектура. Като синоним",
+                "на това наименование, се използват и съкращенията AMD64 (използвано от AMD), EM64T и IA-32e (използвани от",
+                "Intel) и x64 (използвано от Microsoft)."
         )
         val SP = "${0x3000.toChar()}${0x3000.toChar()}"
 
@@ -95,6 +126,8 @@ nopqrstuvwxyz
                 "${0xe006.toChar()} ${Lang["GAME_INVENTORY_USE"p]}$SP${0xe011.toChar()}..${0xe019.toChar()} ${Lang["GAME_INVENTORY_REGISTER"]}$SP${0xe034.toChar()} ${Lang["GAME_INVENTORY_DROP"]}"
         )*/
 
+        Terrarum.gameLocale = "bgBG"
+
         text.forEachIndexed { i, s ->
             g.drawString(s, 10f, 70f + 20 * i)
         }
diff --git a/src/net/torvald/terrarum/StateMidiInputTest.kt b/src/net/torvald/terrarum/StateMidiInputTest.kt
index 5667c96a6..7bc45ecbc 100644
--- a/src/net/torvald/terrarum/StateMidiInputTest.kt
+++ b/src/net/torvald/terrarum/StateMidiInputTest.kt
@@ -242,7 +242,7 @@ class BeeperSlave {
     }
 
     fun playTone(leninmilli: Int, freq: Double) {
-        audioData = makeAudioData(leninmilli, freq)
+        /*audioData = makeAudioData(leninmilli, freq)
 
 
         if (!AL.isCreated()) AL.create()
@@ -282,7 +282,7 @@ class BeeperSlave {
         }
         catch (e: ALException) {
             AL10.alDeleteSources(beepSource)
-        }
+        }*/
     }
 
     // Custom implementation of Util.checkALError() that uses our custom exception.
diff --git a/src/net/torvald/terrarum/console/Inventory.kt b/src/net/torvald/terrarum/console/Inventory.kt
index 3ab315906..a4521ff3b 100644
--- a/src/net/torvald/terrarum/console/Inventory.kt
+++ b/src/net/torvald/terrarum/console/Inventory.kt
@@ -35,11 +35,11 @@ internal object Inventory : ConsoleCommand {
                 Echo("(inventory empty)")
             }
             else {
-                target!!.inventory.forEach {
-                    if (it.amount == 0) {
-                        EchoError("Unexpected zero-amounted item: ID ${it.item.dynamicID}")
+                target!!.inventory.forEach { val (item, amount) = it
+                    if (amount == 0) {
+                        EchoError("Unexpected zero-amounted item: ID ${item.dynamicID}")
                     }
-                    Echo("ID ${it.item}${if (it.amount > 1) " (${it.amount})" else ""}")
+                    Echo("ID $item${if (amount > 1) " ($amount)" else ""}")
                 }
             }
         }
diff --git a/src/net/torvald/terrarum/gameactors/AVKey.kt b/src/net/torvald/terrarum/gameactors/AVKey.kt
index 0cba40f14..a2efd8951 100644
--- a/src/net/torvald/terrarum/gameactors/AVKey.kt
+++ b/src/net/torvald/terrarum/gameactors/AVKey.kt
@@ -41,6 +41,7 @@ object AVKey {
      */
     const val LUMINOSITY = "luminosity"
     const val DRAGCOEFF = "dragcoeff"
+    const val FALLDAMPENMULT = "falldampenmult"
 
     /** String
      * e.g. Jarppi
diff --git a/src/net/torvald/terrarum/gameactors/PlayerBuilderSigrid.kt b/src/net/torvald/terrarum/gameactors/PlayerBuilderSigrid.kt
index 240627cf1..591cc8f54 100644
--- a/src/net/torvald/terrarum/gameactors/PlayerBuilderSigrid.kt
+++ b/src/net/torvald/terrarum/gameactors/PlayerBuilderSigrid.kt
@@ -50,7 +50,7 @@ object PlayerBuilderSigrid {
         p.actorValue[AVKey.INTELLIGENT] = true
 
         //p.actorValue[AVKey.LUMINOSITY] = Color(0x434aff).to10bit()
-        p.actorValue[AVKey.LUMINOSITY] = 214127943 // bright purple
+        //p.actorValue[AVKey.LUMINOSITY] = 214127943 // bright purple
 
         p.actorValue[AVKey.BASEDEFENCE] = 141
 
diff --git a/src/net/torvald/terrarum/ui/BasicDebugInfoWindow.kt b/src/net/torvald/terrarum/ui/BasicDebugInfoWindow.kt
index 4aa60428d..22d224471 100644
--- a/src/net/torvald/terrarum/ui/BasicDebugInfoWindow.kt
+++ b/src/net/torvald/terrarum/ui/BasicDebugInfoWindow.kt
@@ -111,7 +111,8 @@ class BasicDebugInfoWindow : UICanvas {
                     "${if (player.walledLeft) "$ccR" else "$ccG"}L" +
                     "${if (player.walledBottom) "$ccR" else "$ccG"}${0x1F.toChar()}" +
                     "${if (player.walledTop) "$ccR" else "$ccG"}${0x1E.toChar()}" +
-                    "${if (player.walledRight) "$ccR" else "$ccG"}R"
+                    "${if (player.walledRight) "$ccR" else "$ccG"}R" +
+                    "${if (player.colliding) "$ccR" else "$ccG"}${0x08.toChar()}"
             )
         }
 
diff --git a/src/net/torvald/terrarum/virtualcomputer/computer/TerrarumComputer.kt b/src/net/torvald/terrarum/virtualcomputer/computer/TerrarumComputer.kt
index 9defa2040..a3e3906d6 100644
--- a/src/net/torvald/terrarum/virtualcomputer/computer/TerrarumComputer.kt
+++ b/src/net/torvald/terrarum/virtualcomputer/computer/TerrarumComputer.kt
@@ -537,7 +537,7 @@ class TerrarumComputer(peripheralSlots: Int) {
     }
 
     private fun playTone(leninmilli: Int, freq: Double) {
-        audioData = makeAudioData(leninmilli, freq)
+        /*audioData = makeAudioData(leninmilli, freq)
 
 
         if (!AL.isCreated()) AL.create()
@@ -577,7 +577,7 @@ class TerrarumComputer(peripheralSlots: Int) {
         }
         catch (e: ALException) {
             AL10.alDeleteSources(beepSource)
-        }
+        }*/
     }
 
     // Custom implementation of Util.checkALError() that uses our custom exception.
diff --git a/src/net/torvald/terrarum/virtualcomputer/peripheral/Peripheral.kt b/src/net/torvald/terrarum/virtualcomputer/peripheral/Peripheral.kt
index 13820ed79..08fd6dbc3 100644
--- a/src/net/torvald/terrarum/virtualcomputer/peripheral/Peripheral.kt
+++ b/src/net/torvald/terrarum/virtualcomputer/peripheral/Peripheral.kt
@@ -12,4 +12,6 @@ abstract class Peripheral(val tableName: String) {
     abstract fun loadLib(globals: Globals)
 
     override fun toString(): String = "Peripheral:$tableName"
+
+    abstract val memSize: Int
 }
\ No newline at end of file
diff --git a/src/net/torvald/terrarum/virtualcomputer/peripheral/PeripheralCharLCD.kt b/src/net/torvald/terrarum/virtualcomputer/peripheral/PeripheralCharLCD.kt
new file mode 100644
index 000000000..1a7fcc813
--- /dev/null
+++ b/src/net/torvald/terrarum/virtualcomputer/peripheral/PeripheralCharLCD.kt
@@ -0,0 +1,44 @@
+package net.torvald.terrarum.virtualcomputer.peripheral
+
+import net.torvald.terrarum.ModMgr
+import org.luaj.vm2.Globals
+import org.newdawn.slick.Graphics
+import org.newdawn.slick.SpriteSheet
+import org.newdawn.slick.SpriteSheetFont
+
+/**
+ * Created by minjaesong on 2017-05-31.
+ */
+class PeripheralCharLCD(val width: Int, val height: Int) : Peripheral("charLCD") {
+    companion object {
+        private val fontSheet = SpriteSheet(ModMgr.getPath("dwarventech", "mt-32.tga"), 16, 16)
+        private val font = SpriteSheetFont(fontSheet, 0.toChar())
+        private val fontW = fontSheet.width / fontSheet.horizontalCount
+        private val fontH = fontSheet.height / fontSheet.verticalCount
+    }
+
+    override fun loadLib(globals: Globals) {
+        TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
+    }
+
+    override fun toString(): String {
+        return super.toString()
+    }
+
+    override val memSize = width * height
+
+    var cursor: Int = 0 // character LCDs are mostly single long line wrapped
+
+    val memory = ByteArray(memSize) // temporary; replace with proper VMPeripheralWrapper
+
+    /**
+     * @param g Frame Buffer that holds the display of LCD screen
+     */
+    fun render(g: Graphics) {
+        g.font = PeripheralCharLCD.font
+
+        memory.forEachIndexed { index, byte ->
+            g.drawString("${byte.toChar()}", (index % width) * fontW.toFloat(), (index / width) * fontH.toFloat())
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/net/torvald/terrarum/virtualcomputer/peripheral/PeripheralInternet.kt b/src/net/torvald/terrarum/virtualcomputer/peripheral/PeripheralInternet.kt
index 45b19c96a..fe6264a31 100644
--- a/src/net/torvald/terrarum/virtualcomputer/peripheral/PeripheralInternet.kt
+++ b/src/net/torvald/terrarum/virtualcomputer/peripheral/PeripheralInternet.kt
@@ -17,6 +17,8 @@ import java.net.URL
 internal class PeripheralInternet(val host: TerrarumComputer)
 : Peripheral("internet"){
 
+    override val memSize = 1024
+
     override fun loadLib(globals: Globals) {
         globals["internet"] = LuaTable()
         globals["internet"]["fetch"] = FetchWebPage()
diff --git a/src/net/torvald/terrarum/virtualcomputer/peripheral/PeripheralPSG.kt b/src/net/torvald/terrarum/virtualcomputer/peripheral/PeripheralPSG.kt
index 05360ea53..d773e5e7e 100644
--- a/src/net/torvald/terrarum/virtualcomputer/peripheral/PeripheralPSG.kt
+++ b/src/net/torvald/terrarum/virtualcomputer/peripheral/PeripheralPSG.kt
@@ -14,6 +14,8 @@ import org.luaj.vm2.LuaValue
 internal class PeripheralPSG(val host: TerrarumComputer)
 : Peripheral("psg") {
 
+    override val memSize = 1024
+
     override fun loadLib(globals: Globals) {
         globals["psg"] = LuaTable()
     }
diff --git a/src/net/torvald/terrarum/virtualcomputer/peripheral/PeripheralVideoCard.kt b/src/net/torvald/terrarum/virtualcomputer/peripheral/PeripheralVideoCard.kt
index 3c7807f08..764a00d39 100644
--- a/src/net/torvald/terrarum/virtualcomputer/peripheral/PeripheralVideoCard.kt
+++ b/src/net/torvald/terrarum/virtualcomputer/peripheral/PeripheralVideoCard.kt
@@ -83,6 +83,11 @@ class PeripheralVideoCard(val host: TerrarumComputer, val termW: Int = 80, val t
     val cursorSprite = ImageBuffer(blockW, blockH * 2)
     val cursorImage: Image
 
+
+    override val memSize = 256 * 8 + (width * height * 2) + spritesCount * 16 * 7
+    // fontRom + framebuffers + sprites
+
+
     init {
         Arrays.fill(cursorSprite.rgba, 0xFF.toByte())
         cursorImage = cursorSprite.image
diff --git a/src/net/torvald/terrarum/worlddrawer/BlocksDrawer.kt b/src/net/torvald/terrarum/worlddrawer/BlocksDrawer.kt
index 52eaddf25..d29b01435 100644
--- a/src/net/torvald/terrarum/worlddrawer/BlocksDrawer.kt
+++ b/src/net/torvald/terrarum/worlddrawer/BlocksDrawer.kt
@@ -28,7 +28,7 @@ object BlocksDrawer_NEW {
     private val TILE_SIZEF = FeaturesDrawer.TILE_SIZE.toFloat()
 
     // TODO modular
-    val tilesTerrain = SpriteSheet(ModMgr.getPath("basegame", "blocks/test.tga.gz"), TILE_SIZE, TILE_SIZE) // 64 MB
+    val tilesTerrain = SpriteSheet(ModMgr.getPath("basegame", "blocks/terrain.tga.gz"), TILE_SIZE, TILE_SIZE) // 64 MB
     val terrainHorizontalTiles = tilesTerrain.horizontalCount
     val tilesWire = SpriteSheet(ModMgr.getPath("basegame", "blocks/wire.tga.gz"), TILE_SIZE, TILE_SIZE) // 4 MB
     val wireHorizontalTiles = tilesWire.horizontalCount
diff --git a/src/org/dyn4j/geometry/Vector2.kt b/src/org/dyn4j/geometry/Vector2.kt
index 465e823b3..3b9724322 100644
--- a/src/org/dyn4j/geometry/Vector2.kt
+++ b/src/org/dyn4j/geometry/Vector2.kt
@@ -66,10 +66,10 @@ import org.dyn4j.Epsilon
 class Vector2 {
 
     /** The magnitude of the x component of this [Vector2]  */
-    @Volatile var x: Double = 0.0
+    var x: Double = 0.0
 
     /** The magnitude of the y component of this [Vector2]  */
-    @Volatile var y: Double = 0.0
+    var y: Double = 0.0
 
     /** Default constructor.  */
     constructor() {
diff --git a/work_files/UI/portable_computer_mockup.psd b/work_files/UI/portable_computer_mockup.psd
new file mode 100644
index 000000000..7b2884b7b
--- /dev/null
+++ b/work_files/UI/portable_computer_mockup.psd
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:419174e65ff14673014ab48e6923e73804b49bfac07d5733498323b4ee82bee3
+size 290844
diff --git a/work_files/UI/watchface_mockup.psd b/work_files/UI/watchface_mockup.psd
index 3478ee8cc..16227af2e 100644
--- a/work_files/UI/watchface_mockup.psd
+++ b/work_files/UI/watchface_mockup.psd
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:05643f403bb5fc2631355a7bd800bab15ef632f70703269e354f5e00e91c1b3b
-size 3413210
+oid sha256:e707caae1ce2557bc81a4f2592b9eac1164b3a4bdaf77375bd51b987381575d3
+size 3430728
diff --git a/work_files/graphics/fonts/fullwidth_forms.psd b/work_files/graphics/fonts/fullwidth_forms.psd
index 57712c20f..c9b6ca7ec 100644
--- a/work_files/graphics/fonts/fullwidth_forms.psd
+++ b/work_files/graphics/fonts/fullwidth_forms.psd
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:21b337e65da30e08e57217a694d27caef4de09d0a93bab5dcea4d0e883e84b91
-size 37755
+oid sha256:6715db63241cfe3eb2c37c95eca97da94e2b7b9a96cb3d88ef1fe973e67e7451
+size 48759
diff --git a/work_files/walk_bug_desc.png b/work_files/walk_bug_desc.png
new file mode 100644
index 000000000..08f9e1f87
Binary files /dev/null and b/work_files/walk_bug_desc.png differ