diff --git a/runelite-api/src/main/java/net/runelite/api/Client.java b/runelite-api/src/main/java/net/runelite/api/Client.java
index 6efbd4f892..ab21709a62 100644
--- a/runelite-api/src/main/java/net/runelite/api/Client.java
+++ b/runelite-api/src/main/java/net/runelite/api/Client.java
@@ -407,6 +407,16 @@ public interface Client extends GameShell
 	 */
 	IndexDataBase getIndexScripts();
 
+	/**
+	 * Gets the config archive, containing Varplayer and Varbit definitions
+	 */
+	IndexDataBase getConfigArchive();
+
+	/**
+	 * Gets the config index.
+	 */
+	IndexDataBase getIndexConfig();
+
 	/**
 	 * Returns the x-axis base coordinate.
 	 * <p>
@@ -810,9 +820,10 @@ public interface Client extends GameShell
 	void setVarbitValue(int[] varps, int varbit, int value);
 
 	/**
-	 * @return the total number of VarbitDefinition
+	 * Gets the varbit composition for a given varbit id
 	 */
-	int getVarbitCount();
+	@Nullable
+	VarbitDefinition getVarbitDefinition(int id);
 
 	/**
 	 * Gets the widget flags table.
diff --git a/runelite-api/src/main/java/net/runelite/api/IndexDataBase.java b/runelite-api/src/main/java/net/runelite/api/IndexDataBase.java
index 58fb7d498a..4aea415d86 100644
--- a/runelite-api/src/main/java/net/runelite/api/IndexDataBase.java
+++ b/runelite-api/src/main/java/net/runelite/api/IndexDataBase.java
@@ -9,4 +9,9 @@ public interface IndexDataBase
 	 * Returns true if any cache overlay in this index is outdated due to hash mismatch
 	 */
 	boolean isOverlayOutdated();
+
+	/**
+	 * Get the child file ids for a given group
+	 */
+	int[] getFileIds(int group);
 }
diff --git a/runelite-api/src/main/java/net/runelite/api/VarbitDefinition.java b/runelite-api/src/main/java/net/runelite/api/VarbitDefinition.java
new file mode 100644
index 0000000000..b0fbf7266b
--- /dev/null
+++ b/runelite-api/src/main/java/net/runelite/api/VarbitDefinition.java
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2020, Adam <Adam@sigterm.info>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package net.runelite.api;
+
+public interface VarbitDefinition
+{
+	/**
+	 * The varp index for this varbit
+	 */
+	int getIndex();
+
+	/**
+	 * The least significant bit of the varbit
+	 */
+	int getLeastSignificantBit();
+
+	/**
+	 * The most significant bit of the varbit (inclusive)
+	 */
+	int getMostSignificantBit();
+}
\ No newline at end of file
diff --git a/runelite-mixins/src/main/java/net/runelite/mixins/VarbitMixin.java b/runelite-mixins/src/main/java/net/runelite/mixins/VarbitMixin.java
index ab0998a537..30932ffa1e 100644
--- a/runelite-mixins/src/main/java/net/runelite/mixins/VarbitMixin.java
+++ b/runelite-mixins/src/main/java/net/runelite/mixins/VarbitMixin.java
@@ -10,7 +10,6 @@ import net.runelite.api.mixins.Inject;
 import net.runelite.api.mixins.Mixin;
 import net.runelite.api.mixins.Shadow;
 import net.runelite.rs.api.RSClient;
-import net.runelite.rs.api.RSEvictingDualNodeHashTable;
 import net.runelite.rs.api.RSVarbitDefinition;
 
 @Mixin(RSClient.class)
@@ -54,25 +53,44 @@ public abstract class VarbitMixin implements RSClient
 		setVarbitValue(getVarps(), varbitId, value);
 	}
 
+	@Inject
+	@Override
+	public RSVarbitDefinition getVarbitDefinition(int id)
+	{
+		assert isClientThread();
+
+		RSVarbitDefinition varbit;
+		varbit = varbitCache.getIfPresent(id);
+		if (varbit != null)
+		{
+			return varbit;
+		}
+		varbit = (RSVarbitDefinition) getVarbitCache().get(id);
+		if (varbit != null && !(varbit.getIndex() == 0 && varbit.getMostSignificantBit() == 0 && varbit.getLeastSignificantBit() == 0))
+		{
+			return varbit;
+		}
+
+		byte[] fileData = getConfigArchive().getConfigData(VARBITS_GROUP, id);
+		if (fileData == null)
+		{
+			return null;
+		}
+		varbit = newVarbitDefinition();
+		varbit.decode(newBuffer(fileData));
+		return varbit;
+	}
+
 	@Inject
 	@Override
 	public int getVarbitValue(int[] varps, int varbitId)
 	{
 		assert client.isClientThread();
 
-		RSVarbitDefinition v = varbitCache.getIfPresent(varbitId);
+		RSVarbitDefinition v = getVarbitDefinition(varbitId);
 		if (v == null)
 		{
-			client.getVarbit(varbitId); // load varbit into cache
-			RSEvictingDualNodeHashTable varbits = client.getVarbitCache();
-			v = (RSVarbitDefinition) varbits.get(varbitId); // get from cache
-			varbitCache.put(varbitId, v);
-		}
-
-		if (v.getIndex() == 0 && v.getLeastSignificantBit() == 0 && v.getMostSignificantBit() == 0)
-		{
-			getLogger().debug("Varbit {} doesn't exist!", varbitId);
-			return 0;
+			throw new IndexOutOfBoundsException(String.format("Varbit %d does not exist!", varbitId)); // oob for "backwards compatibility lol"
 		}
 
 		int value = varps[v.getIndex()];
@@ -86,13 +104,10 @@ public abstract class VarbitMixin implements RSClient
 	@Override
 	public void setVarbitValue(int[] varps, int varbitId, int value)
 	{
-		RSVarbitDefinition v = varbitCache.getIfPresent(varbitId);
+		RSVarbitDefinition v = getVarbitDefinition(varbitId);
 		if (v == null)
 		{
-			client.getVarbit(varbitId); // load varbit into cache
-			RSEvictingDualNodeHashTable varbits = client.getVarbitCache();
-			v = (RSVarbitDefinition) varbits.get(varbitId); // get from cache
-			varbitCache.put(varbitId, v);
+			throw new IndexOutOfBoundsException(String.format("Varbit %d does not exist!", varbitId)); // oob for "backwards compatibility lol"
 		}
 
 		int lsb = v.getLeastSignificantBit();
@@ -155,11 +170,4 @@ public abstract class VarbitMixin implements RSClient
 	{
 		return getVarcs().getVarcMap();
 	}
-
-	@Inject
-	@Override
-	public int getVarbitCount()
-	{
-		return getConfigArchive().getGroupFileCount(VARBITS_GROUP);
-	}
 }
diff --git a/runescape-api/src/main/java/net/runelite/rs/api/RSAbstractArchive.java b/runescape-api/src/main/java/net/runelite/rs/api/RSAbstractArchive.java
index 653bd83962..fe3f6c7003 100644
--- a/runescape-api/src/main/java/net/runelite/rs/api/RSAbstractArchive.java
+++ b/runescape-api/src/main/java/net/runelite/rs/api/RSAbstractArchive.java
@@ -8,6 +8,7 @@ public interface RSAbstractArchive extends IndexDataBase
 	@Import("takeFile")
 	byte[] getConfigData(int archiveId, int fileId);
 
-	@Import("getGroupFileCount")
-	int getGroupFileCount(int group);
+	@Import("getGroupFileIds")
+	@Override
+	int[] getFileIds(int group);
 }
diff --git a/runescape-api/src/main/java/net/runelite/rs/api/RSClient.java b/runescape-api/src/main/java/net/runelite/rs/api/RSClient.java
index 597b93e4f1..8a74bb104f 100644
--- a/runescape-api/src/main/java/net/runelite/rs/api/RSClient.java
+++ b/runescape-api/src/main/java/net/runelite/rs/api/RSClient.java
@@ -458,6 +458,7 @@ public interface RSClient extends RSGameShell, Client
 	void setIndexedSpritePalette(int[] indexedSpritePalette);
 
 	@Import("archive2")
+	@Override
 	RSArchive getConfigArchive();
 
 	@Import("archive6")
@@ -1275,4 +1276,10 @@ public interface RSClient extends RSGameShell, Client
 
 	@Import("rightTitleSprite")
 	void setRightTitleSprite(Sprite background);
+
+	@Construct
+	RSBuffer newBuffer(byte[] bytes);
+
+	@Construct
+	RSVarbitDefinition newVarbitDefinition();
 }
diff --git a/runescape-api/src/main/java/net/runelite/rs/api/RSVarbitDefinition.java b/runescape-api/src/main/java/net/runelite/rs/api/RSVarbitDefinition.java
index 947106c183..4e6850e27d 100644
--- a/runescape-api/src/main/java/net/runelite/rs/api/RSVarbitDefinition.java
+++ b/runescape-api/src/main/java/net/runelite/rs/api/RSVarbitDefinition.java
@@ -1,8 +1,9 @@
 package net.runelite.rs.api;
 
+import net.runelite.api.VarbitDefinition;
 import net.runelite.mapping.Import;
 
-public interface RSVarbitDefinition extends RSDualNode
+public interface RSVarbitDefinition extends VarbitDefinition, RSDualNode
 {
 	@Import("baseVar")
 	int getIndex();
@@ -12,4 +13,7 @@ public interface RSVarbitDefinition extends RSDualNode
 
 	@Import("endBit")
 	int getMostSignificantBit();
+
+	@Import("decode")
+	void decode(RSBuffer buffer);
 }