diff --git a/src/main/scala/li/cil/oc/server/component/DebugCard.scala b/src/main/scala/li/cil/oc/server/component/DebugCard.scala
index 36cb97818..94b401aa2 100644
--- a/src/main/scala/li/cil/oc/server/component/DebugCard.scala
+++ b/src/main/scala/li/cil/oc/server/component/DebugCard.scala
@@ -25,8 +25,8 @@ import net.minecraft.block.Block
 import net.minecraft.entity.player.EntityPlayerMP
 import net.minecraft.item.Item
 import net.minecraft.item.ItemStack
-import net.minecraft.nbt.JsonToNBT
-import net.minecraft.nbt.NBTTagCompound
+import net.minecraft.nbt._
+import net.minecraft.nbt.NBTBase.NBTPrimitive
 import net.minecraft.server.MinecraftServer
 import net.minecraft.server.management.UserListOpsEntry
 import net.minecraft.util.IChatComponent
@@ -317,6 +317,76 @@ object DebugCard {
 
     // ----------------------------------------------------------------------- //
 
+    def getMap(tag: NBTTagCompound): java.util.Map[String, Any] = {
+      val keys = tag.func_150296_c().asInstanceOf[java.util.Set[String]]
+      val map = new java.util.HashMap[String, Any]()
+      for (key <- keys) {
+        val keyMap = new java.util.HashMap[String, Any]()
+        map.put(key, keyMap)
+        val nbt = tag.getTag(key)
+        keyMap.put("type", nbt.getId)
+        if (nbt.isInstanceOf[NBTTagCompound]) keyMap.put("value", getMap(nbt.asInstanceOf[NBTTagCompound]))
+        else if (nbt.isInstanceOf[NBTPrimitive]) keyMap.put("value", nbt.asInstanceOf[NBTPrimitive].func_150286_g())
+        else if (nbt.isInstanceOf[NBTTagString]) keyMap.put("value", nbt.asInstanceOf[NBTTagString].func_150285_a_())
+        else if (nbt.isInstanceOf[NBTTagList]) {
+          val array = new java.util.HashMap[Integer, Any]()
+          val tagList = nbt.asInstanceOf[NBTTagList]
+          for (i <- 0 until tagList.tagCount()) array.put(i + 1, getMap(tagList.getCompoundTagAt(i)))
+          keyMap.put("value", array)
+        } else if (nbt.isInstanceOf[NBTTagIntArray]) {
+          val array = new java.util.HashMap[Integer, Any]()
+          val tagIntList = nbt.asInstanceOf[NBTTagIntArray].func_150302_c()
+          for (i <- 0 until tagIntList.length) array.put(i + 1, tagIntList(i))
+          keyMap.put("value", array)
+        } else if (nbt.isInstanceOf[NBTTagByteArray]) {
+          val array = new java.util.HashMap[Integer, Any]()
+          val tagByteList = nbt.asInstanceOf[NBTTagByteArray].func_150292_c()
+          for (i <- 0 until tagByteList.length) array.put(i + 1, tagByteList(i))
+          keyMap.put("value", array)
+        } else throw new Exception("NBT tag " + NBTBase.NBTTypes(nbt.getId) + " is unsupported")
+      }
+      map
+    }
+
+    def getTag(map: java.util.Map[String, Any]): NBTTagCompound = {
+      val tag = new NBTTagCompound()
+      for ((key, value) <- map) {
+        val keyObject = value.asInstanceOf[java.util.Map[String, Any]]
+        val `type` = keyObject.get("type").asInstanceOf[Double].intValue()
+        val element = keyObject.get("value")
+        `type` match {
+          case 1 => tag.setByte(key, element.asInstanceOf[Double].byteValue())
+          case 2 => tag.setShort(key, element.asInstanceOf[Double].shortValue())
+          case 3 => tag.setInteger(key, element.asInstanceOf[Double].intValue())
+          case 4 => tag.setLong(key, element.asInstanceOf[Double].longValue())
+          case 5 => tag.setFloat(key, element.asInstanceOf[Double].floatValue())
+          case 6 => tag.setDouble(key, element.asInstanceOf[Double])
+          case 7 => 
+            var jbArray = element.asInstanceOf[java.util.Map[Integer, Any]]
+            var bArray = Array.ofDim[Byte](jbArray.size)
+            for (i <- 0 until jbArray.size) bArray(i) = jbArray.get(i + 1).asInstanceOf[Double].byteValue()
+            tag.setByteArray(key, bArray)
+
+          case 8 => tag.setString(key, element.asInstanceOf[String])
+          case 9 => 
+            var array = element.asInstanceOf[java.util.Map[Integer, Any]]
+            var tagList = new NBTTagList()
+            for ((key, value) <- array) tagList.appendTag(getTag(value.asInstanceOf[java.util.Map[String, Any]]))
+            tag.setTag(key, tagList)
+
+          case 10 => tag.setTag(key, getTag(element.asInstanceOf[java.util.Map[String, Any]]))
+          case 11 => 
+            var ibArray = element.asInstanceOf[java.util.Map[Integer, Any]]
+            var iArray = Array.ofDim[Int](ibArray.size)
+            for (i <- 0 until ibArray.size) iArray(i) = ibArray.get(i + 1).asInstanceOf[Double].intValue()
+            tag.setIntArray(key, iArray)
+
+          case _ => throw new Exception("NBT type #" + `type` + " is unsupported")
+        }
+      }
+      tag
+    }
+
     @Callback(doc = """function():number -- Gets the numeric id of the current dimension.""")
     def getDimensionId(context: Context, args: Arguments): Array[AnyRef] = {
       checkEnabled()
@@ -415,6 +485,33 @@ object DebugCard {
       result(block != null && block.hasTileEntity(world.getBlockMetadata(x, y, z)))
     }
 
+    @Callback(doc = """function(x:number, y:number, z:number):table -- Get the NBT of the block at the specified coordinates.""")
+    def getTileNBT(context: Context, args: Arguments): Array[AnyRef] = {
+      checkEnabled()
+      val (x, y, z) = (args.checkInteger(0), args.checkInteger(1), args.checkInteger(2))
+      val tileEntity = world.getTileEntity(x, y, z)
+      if (tileEntity != null) {
+        val tag = new NBTTagCompound()
+        tileEntity.writeToNBT(tag)
+        return result(getMap(tag))
+      }
+      result(null)
+    }
+
+    @Callback(doc = """function(x:number, y:number, z:number, nbt:table):boolean -- Set the NBT of the block at the specified coordinates.""")
+    def setTileNBT(context: Context, args: Arguments): Array[AnyRef] = {
+      checkEnabled()
+      val (x, y, z) = (args.checkInteger(0), args.checkInteger(1), args.checkInteger(2))
+      val nbt = args.checkTable(3).asInstanceOf[java.util.Map[String,Any]]
+      val tileEntity = world.getTileEntity(x, y, z)
+      if (tileEntity != null) {
+        val tag = getTag(nbt)
+        tileEntity.readFromNBT(tag)
+        return result(true)
+      }
+      result(null)
+    }
+
     @Callback(doc = """function(x:number, y:number, z:number):number -- Get the light opacity of the block at the specified coordinates.""")
     def getLightOpacity(context: Context, args: Arguments): Array[AnyRef] = {
       checkEnabled()