diff --git a/src/main/java/org/dungeon/achievements/AchievementComponent.java b/src/main/java/org/dungeon/achievements/AchievementComponent.java
deleted file mode 100644
index d13bcc7f..00000000
--- a/src/main/java/org/dungeon/achievements/AchievementComponent.java
+++ /dev/null
@@ -1,31 +0,0 @@
-/*
- * Copyright (C) 2014 Bernardo Sulzbach
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-package org.dungeon.achievements;
-
-import org.dungeon.creatures.Hero;
-
-/**
- * The component abstract class.
- * <p/>
- * Created by Bernardo on 07/12/2014.
- */
-abstract class AchievementComponent {
-
-  abstract boolean isFulfilled(Hero hero);
-
-}
diff --git a/src/main/java/org/dungeon/achievements/BattleComponent.java b/src/main/java/org/dungeon/achievements/BattleComponent.java
index 43333065..9d93ae26 100644
--- a/src/main/java/org/dungeon/achievements/BattleComponent.java
+++ b/src/main/java/org/dungeon/achievements/BattleComponent.java
@@ -27,7 +27,7 @@
  * <p/>
  * Created by Bernardo on 07/12/2014.
  */
-final class BattleComponent extends AchievementComponent {
+final class BattleComponent {
 
   final CounterMap<String> killsByCreatureType = new CounterMap<String>();
   final CounterMap<ID> killsByCreatureID = new CounterMap<ID>();
@@ -35,7 +35,6 @@ final class BattleComponent extends AchievementComponent {
   int battleCount;
   int longestBattleLength;
 
-  @Override
   public boolean isFulfilled(Hero hero) {
     BattleStatistics stats = hero.getBattleStatistics();
     if (stats.getBattleCount() < battleCount) {
diff --git a/src/main/java/org/dungeon/achievements/ExplorationComponent.java b/src/main/java/org/dungeon/achievements/ExplorationComponent.java
index 44a83eff..d7264f61 100644
--- a/src/main/java/org/dungeon/achievements/ExplorationComponent.java
+++ b/src/main/java/org/dungeon/achievements/ExplorationComponent.java
@@ -27,7 +27,7 @@
  * <p/>
  * Created by Bernardo on 07/12/2014.
  */
-final class ExplorationComponent extends AchievementComponent {
+final class ExplorationComponent {
 
   /**
    * Stores how many kills in Locations with a specified ID the Hero must have.
@@ -44,7 +44,6 @@ final class ExplorationComponent extends AchievementComponent {
    */
   final CounterMap<ID> sameLocationVisitCounter = new CounterMap<ID>();
 
-  @Override
   public boolean isFulfilled(Hero hero) {
     ExplorationLog explorationLog = hero.getExplorationLog();
     for (ID locationID : killCounter.keySet()) {