diff --git a/AndorsTrail/src/com/gpl/rpg/AndorsTrail/controller/ConversationController.java b/AndorsTrail/src/com/gpl/rpg/AndorsTrail/controller/ConversationController.java
index 393321225..80753c12e 100644
--- a/AndorsTrail/src/com/gpl/rpg/AndorsTrail/controller/ConversationController.java
+++ b/AndorsTrail/src/com/gpl/rpg/AndorsTrail/controller/ConversationController.java
@@ -149,35 +149,47 @@ public final class ConversationController {
 	public static boolean canFulfillRequirement(WorldContext world, Requirement requirement) {
 		Player player = world.model.player;
 		GameStatistics stats = world.model.statistics;
+		boolean result = false;
 		switch (requirement.requireType) {
 			case questProgress:
-				return player.hasExactQuestProgress(requirement.requireID, requirement.value);
+				result = player.hasExactQuestProgress(requirement.requireID, requirement.value);
+				break;
 			case questLatestProgress:
-				return player.isLatestQuestProgress(requirement.requireID, requirement.value);
+				result = player.isLatestQuestProgress(requirement.requireID, requirement.value);
+				break;
 			case wear:
-				return player.inventory.isWearing(requirement.requireID, requirement.value);
+				result =  player.inventory.isWearing(requirement.requireID, requirement.value);
+				break;
 			case inventoryKeep:
 			case inventoryRemove:
 				if (ItemTypeCollection.isGoldItemType(requirement.requireID)) {
-					return player.inventory.gold >= requirement.value;
+					result =  player.inventory.gold >= requirement.value;
 				} else {
-					return player.inventory.hasItem(requirement.requireID, requirement.value);
+					result =  player.inventory.hasItem(requirement.requireID, requirement.value);
 				}
+				break;
 			case skillLevel:
-				return player.getSkillLevel(SkillCollection.SkillID.valueOf(requirement.requireID)) >= requirement.value;
+				result =  player.getSkillLevel(SkillCollection.SkillID.valueOf(requirement.requireID)) >= requirement.value;
+				break;
 			case killedMonster:
-				return stats.getNumberOfKillsForMonsterType(requirement.requireID) >= requirement.value;
+				result =  stats.getNumberOfKillsForMonsterType(requirement.requireID) >= requirement.value;
+				break;
 			case timerElapsed:
-				return world.model.worldData.hasTimerElapsed(requirement.requireID, requirement.value);
+				result =  world.model.worldData.hasTimerElapsed(requirement.requireID, requirement.value);
+				break;
 			case usedItem:
-				return stats.getNumberOfTimesItemHasBeenUsed(requirement.requireID) >= requirement.value;
+				result =  stats.getNumberOfTimesItemHasBeenUsed(requirement.requireID) >= requirement.value;
+				break;
 			case spentGold:
-				return stats.getSpentGold() >= requirement.value;
+				result =  stats.getSpentGold() >= requirement.value;
+				break;
 			case consumedBonemeals:
-				return stats.getNumberOfUsedBonemealPotions() >= requirement.value;
+				result =  stats.getNumberOfUsedBonemealPotions() >= requirement.value;
+				break;
 			default:
-				return true;
+				result =  true;
 		}
+		return requirement.negate ? !result : result;
 	}
 
 	public static void requirementFulfilled(WorldContext world, Requirement requirement) {
diff --git a/AndorsTrail/src/com/gpl/rpg/AndorsTrail/model/map/TMXMapTranslator.java b/AndorsTrail/src/com/gpl/rpg/AndorsTrail/model/map/TMXMapTranslator.java
index c5b9a335b..5e5666396 100644
--- a/AndorsTrail/src/com/gpl/rpg/AndorsTrail/model/map/TMXMapTranslator.java
+++ b/AndorsTrail/src/com/gpl/rpg/AndorsTrail/model/map/TMXMapTranslator.java
@@ -121,6 +121,7 @@ public final class TMXMapTranslator {
 						String requireId = null;
 						int requireValue = 0;
 						String phraseID = "";
+						boolean requireNegation = false;
 						for (TMXProperty p : object.properties) {
 							if (p.name.equalsIgnoreCase("phrase")) {
 								phraseID = p.value;
@@ -130,11 +131,13 @@ public final class TMXMapTranslator {
 								requireId = p.value;
 							} else if (p.name.equalsIgnoreCase("requireValue")) {
 								requireValue = Integer.parseInt(p.value);
+							} else if (p.name.equalsIgnoreCase("requireNegation")) {
+								requireNegation = Boolean.parseBoolean(p.value);
 							} else if (AndorsTrailApplication.DEVELOPMENT_VALIDATEDATA) {
 								L.log("OPTIMIZE: Map " + m.name + ", key " + object.name + "@" + topLeft.toString() + " has unrecognized property \"" + p.name + "\".");
 							}
 						}
-						mapObjects.add(MapObject.createKeyArea(position, phraseID, new Requirement(requireType, requireId, requireValue), group.name));
+						mapObjects.add(MapObject.createKeyArea(position, phraseID, new Requirement(requireType, requireId, requireValue, requireNegation), group.name));
 					} else if (object.type.equals("rest")) {
 						mapObjects.add(MapObject.createRestArea(position, object.name, group.name));
 					} else if (object.type.equals("container")) {
diff --git a/AndorsTrail/src/com/gpl/rpg/AndorsTrail/model/script/Requirement.java b/AndorsTrail/src/com/gpl/rpg/AndorsTrail/model/script/Requirement.java
index 0e656d34a..07372ed90 100644
--- a/AndorsTrail/src/com/gpl/rpg/AndorsTrail/model/script/Requirement.java
+++ b/AndorsTrail/src/com/gpl/rpg/AndorsTrail/model/script/Requirement.java
@@ -18,11 +18,13 @@ public final class Requirement {
 	public final RequirementType requireType;
 	public final String requireID;
 	public final int value;
+	public final boolean negate;
 
-	public Requirement(RequirementType requireType, String requireID, int value) {
+	public Requirement(RequirementType requireType, String requireID, int value, boolean negate) {
 		this.requireType = requireType;
 		this.requireID = requireID;
 		this.value = value;
+		this.negate = negate;
 	}
 
 	public String toString() {
@@ -30,6 +32,7 @@ public final class Requirement {
 		buf.append("--");
 		buf.append(requireID);
 		buf.append("--");
+		if (negate) buf.append("!");
 		buf.append(value);
 		return buf.toString();
 	}
diff --git a/AndorsTrail/src/com/gpl/rpg/AndorsTrail/resource/parsers/ConversationListParser.java b/AndorsTrail/src/com/gpl/rpg/AndorsTrail/resource/parsers/ConversationListParser.java
index fe177012b..6a78b2f2f 100644
--- a/AndorsTrail/src/com/gpl/rpg/AndorsTrail/resource/parsers/ConversationListParser.java
+++ b/AndorsTrail/src/com/gpl/rpg/AndorsTrail/resource/parsers/ConversationListParser.java
@@ -25,6 +25,7 @@ public final class ConversationListParser extends JsonCollectionParserFor<Phrase
 					Requirement.RequirementType.valueOf(o.getString(JsonFieldNames.ReplyRequires.requireType))
 					,o.getString(JsonFieldNames.ReplyRequires.requireID)
 					,o.optInt(JsonFieldNames.ReplyRequires.value, 0)
+					,o.optBoolean(JsonFieldNames.ReplyRequires.negate, false)
 			);
 		}
 	};
diff --git a/AndorsTrail/src/com/gpl/rpg/AndorsTrail/resource/parsers/json/JsonFieldNames.java b/AndorsTrail/src/com/gpl/rpg/AndorsTrail/resource/parsers/json/JsonFieldNames.java
index 29f6c01ac..1955749f2 100644
--- a/AndorsTrail/src/com/gpl/rpg/AndorsTrail/resource/parsers/json/JsonFieldNames.java
+++ b/AndorsTrail/src/com/gpl/rpg/AndorsTrail/resource/parsers/json/JsonFieldNames.java
@@ -76,6 +76,7 @@ public final class JsonFieldNames {
 		public static final String requireType = "requireType";
 		public static final String requireID = "requireID";
 		public static final String value = "value";
+		public static final String negate = "negate";
 	}
 
 	public static final class PhraseReward {
diff --git a/AndorsTrailEdit/partials/edit_dialogue.html b/AndorsTrailEdit/partials/edit_dialogue.html
index f9daf4fa4..d247bda1a 100644
--- a/AndorsTrailEdit/partials/edit_dialogue.html
+++ b/AndorsTrailEdit/partials/edit_dialogue.html
@@ -198,6 +198,9 @@
 					<option value="consumedBonemeals">Bonemeals consumed (greater or equals)</option>
 				</select>
 			</div>
+			<div class="filedWithLabel">
+				<label class="checkbox"><input type="checkbox" id="requirenegation" ng-model="require.negate" />Negate this requirement</label>
+			</div>
 			<div ng-show="require.requireType=='questProgress'">
 				<div class="fieldWithLabel">
 					<label for="requireID" >Quest ID:</label>