diff --git a/backend/classes/Card.php b/backend/classes/Card.php
new file mode 100644
index 0000000..078ad4a
--- /dev/null
+++ b/backend/classes/Card.php
@@ -0,0 +1,58 @@
+<?php
+class Card {
+  public $color;
+  public $shape;
+  public $plus;
+  public $minus;
+  public $is_shadow;
+  public $shape2;
+  
+  public function __construct($options = []) {
+    if (!isset($options['color'])) {
+      throw new Exception('A Color is Required to construct a Card');
+    }
+    if (!isset($options['shape'])) {
+      throw new Exception('A Shape is Required to construct a Card');
+    }
+    if (!isset($options['plus'])) {
+      throw new Exception('A Plus value is Required to construct a Card');
+    }
+    if (!isset($options['minus'])) {
+      throw new Exception('A Minus value is Required to construct a Card');
+    }
+    $this->color = $options['color'];
+    $this->shape = $options['shape'];
+    $this->plus = $options['plus'];
+    $this->minus = $options['minus'];
+
+    if (isset($options['id'])) {
+      $this->id = $options['id'];
+    }
+    if (isset($options['is_shadow'])) {
+      $this->is_shadow = $options['is_shadow'];
+    }
+    if (isset($options['shape2'])) {
+      $this->shape2 = $options['shape2'];
+    }
+  }
+
+  public function getWorth() {
+    if ($this->is_shadow) {
+      if (isset($this->color2)) {
+        return 1;
+      }
+      return 0;
+    }
+    if (isset($this->color2)) {
+      if ($this->plus > $this->minus) {
+        return ceil($this->plus / 2);
+      }
+      return ceil($this->minus / 2);
+    }
+    return ceil(($this->plus + $this->minus) / 2);
+  }
+
+  public function getCost() {
+    return floor($this->getWorth() / 2);
+  }
+}
\ No newline at end of file
diff --git a/backend/classes/CardFactory.php b/backend/classes/CardFactory.php
new file mode 100644
index 0000000..f0766c4
--- /dev/null
+++ b/backend/classes/CardFactory.php
@@ -0,0 +1,75 @@
+<?php
+require_once(realpath(dirname(__FILE__) . '/../config.php'));
+require_once(realpath(dirname(__FILE__) . '/./Card.php'));
+
+class CardFactory {
+  public static $card_colors = [
+    'red',
+    'blue',
+    'yellow',
+    'black',
+    'white',
+  ];
+  public static $card_shapes = [
+    'triangle',
+    'square',
+    'pentagon',
+  ];
+
+  private $db;
+  private $max_value;
+
+  public function __construct() {
+    $this->db = new Db();
+    $this->max_value = 10;
+  }
+
+  public function createCardData($rare_chance = 33) {
+    $color = self::$card_colors[mt_rand(0, (count(self::$card_colors) - (mt_rand(0, 100) < $rareChance ? 0 : 2)))];
+    $shape = self::$card_shapes[mt_rand(0, (count(self::$card_shapes) - (mt_rand(0, 100) < $rareChance ? 0 : 1)))];
+    $plus = mt_rand(1, $this->max_value);
+    $minus = mt_rand(1, $this->max_value);
+
+    return [
+      'color' => $color,
+      'shape' => $shape,
+      'plus' => $plus,
+      'minus' => $minus,
+    ];
+  }
+
+  private function getMaxId() {
+    return $this->db->query('SELECT TOP 1 `id` FROM `base_cards` ORDER BY `id` DESC;')->fetch()['id'];
+  }
+
+  public function getCard($id = false) {
+    if ($id === false) {
+      $id = mt_rand(1, $this->getMaxId());
+    }
+    $query = 'SELECT * FROM `base_cards` WHERE `id`=?';
+    $card_data = $this->db->query($query, [$id])->result();
+    if ($card_data) {
+      if (!is_null($card_data['owned'])) {
+        $card_data['is_shadow'] = true;
+      }
+      return new Card($card_data);
+    }
+    return false;
+  }
+
+  public function getPack() {
+    $pack = [
+      'cost' => 0,
+      'cards' => [],
+    ];
+    for ($i = 0; $i < 4; $i++) {
+      $card = $this->getCard();
+      $pack['cards'][] = $card;
+      if (!$card->is_shadow) {
+        $this->db->execute('UPDATE `base_cards` SET `is_packed` WHERE `id`=?', [$card->id]);
+      }
+    }
+    $pack['cost'] = array_reduce($pack['cards'], function($total, $card) { return $total + $card->getCost(); }, 0);
+    return $pack;
+  }
+}
\ No newline at end of file
diff --git a/backend/classes/Db.php b/backend/classes/Db.php
new file mode 100644
index 0000000..b753eaa
--- /dev/null
+++ b/backend/classes/Db.php
@@ -0,0 +1,39 @@
+<?php
+require_once(realpath(dirname(__FILE__) . '/./config.php'));
+
+class Db {
+  private $dbh;
+  public $last_error_info;
+  function __construct() {
+    $this->dbh = new PDO('mysql:host=localhost;dbname=' . DB_NAME . ';charset=utf8', DB_USER, DB_PASSWORD);
+    $this->dbh->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_ASSOC);
+    $this->last_error_info = null;
+  }
+
+  public function execute ($query, $params = array()) {
+    // Run a query that doesn't require a result to be returned
+    $stmt = $this->dbh->prepare($query);
+    if ($stmt->execute($params)) {
+      $this->last_error_info = null;
+      return true;
+    }
+    $this->last_error_info = $stmt->errorInfo();
+    return false;
+  }
+  
+  public function query ($query, $params = array()) {
+    // Run a query that returns results
+    $stmt = $this->dbh->prepare($query);
+    $stmt->execute($params);
+    $this->last_error_info = $stmt->errorInfo();
+    return $stmt;
+  }
+
+  public function lastInsertId () {
+    return $this->dbh->lastInsertId();
+  }
+
+  public function errorInfo () {
+    return $this->dbh->errorInfo();
+  }
+}
\ No newline at end of file
diff --git a/backend/classes/Marketplace.php b/backend/classes/Marketplace.php
new file mode 100644
index 0000000..24bd231
--- /dev/null
+++ b/backend/classes/Marketplace.php
@@ -0,0 +1,4 @@
+<?php
+class Marketplace {
+  
+}
\ No newline at end of file
diff --git a/backend/config.php.changeme b/backend/config.php.changeme
new file mode 100644
index 0000000..b37a771
--- /dev/null
+++ b/backend/config.php.changeme
@@ -0,0 +1,5 @@
+<?php
+
+define('DB_NAME', 'db_name');
+define('DB_USER', 'db_username');
+define('DB_PASSWORD', 'user_password');