diff --git a/server/game-logic/Field.java b/server/game-logic/Field.java
new file mode 100644
index 0000000..90142c6
--- /dev/null
+++ b/server/game-logic/Field.java
@@ -0,0 +1,39 @@
+import java.util.ArrayList;
+
+import Player;
+
+public class Field {
+    private int dice_number;
+    private ArrayList<Field> neighbours;
+    private Player owner;
+
+    public Field(int input_dice_number, Player input_owner){
+        neighbours = new ArrayList<Field>();
+        dice_number = input_dice_number;
+        owner = input_owner;
+    }
+
+    public ArrayList<Field> get_neighbours(){
+        return neighbours;
+    }
+
+    public void add_neighbour(Field input){
+        neighbours.add(input);
+    }
+
+    public int get_dice_number(){
+        return dice_number;
+    }
+
+    public void set_dice_number(int number){
+        dice_number = number;
+    }
+
+    public Player get_owner(){
+        return owner;
+    }
+
+    public void set_owner(Player input){
+        owner = input;
+    }
+}
\ No newline at end of file
diff --git a/server/game-logic/GameManager.java b/server/game-logic/GameManager.java
new file mode 100644
index 0000000..e5d5fa5
--- /dev/null
+++ b/server/game-logic/GameManager.java
@@ -0,0 +1,137 @@
+import Player;
+import Field;
+
+import java.util.ArrayList;
+import java.util.Random;
+
+public class Max{
+    private int max;
+
+    public Max(int num1, int num2){
+        if(num1 < num2){
+            max = num1;
+        }
+        else{
+            max = num2;
+        }
+    }
+
+    public get_max(){
+        return max;
+    }
+}
+
+public class AttackInformations{
+    private int attack_field_dice;
+    private int defense_field_dice;
+    private boolean attack_success;
+    private boolean attack_allowed;
+
+    public AttackInformations(int input_att_field, int input_def_field,boolean input_attack_allowed){
+        attack_field_dice = input_att_field;
+        defense_field_dice = input_def_field;
+        attack_success = (input_att_field >= input_def_field);
+        attack_allowed = input_attack_allowed;
+    }
+
+    public int get_attack_field_dice(){
+        return attack_field_dice;
+    }
+
+    public int get_defense_field_dice(){
+        return defense_field_dice;
+    }
+
+    public boolean get_attack_success(){
+        return attack_success;
+    }
+
+    public boolean get_attack_allowed(){
+        return attack_allowed;
+    }
+}
+
+public class GameManager {
+    private ArrayList<Field> fields;
+    private ArrayList<Player> players;
+    private Player current_att_pl;
+    private Random rand_num_gen;
+
+    public GameManager(){
+        fields = new ArrayList<Field>();
+        players = new ArrayList<Player>();
+        rand_num_gen = new Random();
+    }
+
+    public ArrayList<Player> get_players(){
+        return players;
+    }
+
+    public void add_player(String input){
+        if(players.size() < 8){
+            players.add(Player(input,players.size()));
+        }
+    }
+
+    public AttackInformations attack_field(Field att_field, Field def_field){
+        boolean attack_allowed;
+        boolean att_field_allowed = false;
+        boolean def_field_allowed = false;
+
+        for(Field field:fields){
+            if(field == att_field){
+                att_field_allowed  = true;
+            }
+            if(field == def_field){
+                def_field_allowed = true;
+            }
+        }
+
+        for(Field neigh:att_field.get_neighbours()){
+            if(neigh == def_field){
+                attack_allowed = true;
+            }
+        }
+
+        attack_allowed = att_field_allowed && def_field_allowed && attack_allowed;
+
+        if(attack_allowed){
+            int att_field_sum = 0;
+            int def_field_sum = 0;
+            
+            for(int i = 0; i < att_field.get_dice_number();i++){
+                att_field_sum += 1 + rand_num_gen.nextInt(6);
+            }
+            for(int i = 0; i < def_field.get_dice_number();i++){
+                def_field_sum += 1 + rand_num_gen.nextInt(6);
+            }
+
+            AttackInformations infor = new AttackInformations(att_field_sum, def_field_sum,true);
+            
+            if(infor.get_attack_success()){
+                def_field.set_dice_number(Max(att_field.get_dice_number()-1,1).get_max());
+                
+                def_field.set_owner(att_field.get_owner());
+            }
+            att_field.set_dice_number(1);
+        }
+
+        return AttackInformations(-1,-1,false);
+    }
+
+    public ArrayList<Field> get_fields(){
+        return fields;
+    }
+
+    public void new_game(){
+        fields.clear();
+        
+        int num_fields = 20 + rand_num_gen.nextInt(10);
+
+        int[] player_num_fields =  new int[players.size()];
+
+        for(int x: player_num_fields){
+            x = 0;
+        }
+    }
+}
\ No newline at end of file
diff --git a/server/game-logic/Player.java b/server/game-logic/Player.java
new file mode 100644
index 0000000..34722eb
--- /dev/null
+++ b/server/game-logic/Player.java
@@ -0,0 +1,21 @@
+public class Player{
+    private String name;
+    private int playerid;
+
+    public Player(String input_name, int input_id){
+        name = input_name;
+        playerid = input_id;
+    }
+
+    public void set_name(String input_name){
+        name = input_name;
+    }
+
+    public String get_name(){
+        return name;
+    }
+
+    public int get_playerid(){
+        return playerid;
+    }
+}
\ No newline at end of file
diff --git a/server/game-logic/Test.java b/server/game-logic/Test.java
new file mode 100644
index 0000000..da84aed
--- /dev/null
+++ b/server/game-logic/Test.java
@@ -0,0 +1,8 @@
+import GameManager.*;
+
+public class Test {
+    public static void main(String[] args){
+        Random rand_num = new Random();
+        System.out.println(Integer.toString(rand_num.nextInt(2)));
+    }   
+}
\ No newline at end of file