diff --git a/src/php/Entities/Games/Game.php b/src/php/Entities/Games/Game.php
index 90ed9be..c6d954d 100644
--- a/src/php/Entities/Games/Game.php
+++ b/src/php/Entities/Games/Game.php
@@ -15,6 +15,8 @@ class Game
     private int|null $id;
     #[ORM\Column]
     private string $name;
+    #[ORM\Column(nullable: true)]
+    private string|null $internalName;
 
     public function getName(): string
     {
@@ -25,12 +27,23 @@ class Game
     {
         return $this->id;
     }
+    
+    public function getInternalName(): string 
+    {
+        return $this->internalName ?? $this->name;
+    }
+    
+    public function setInternalName(string $internalName): void
+    {
+        $this->internalName = $internalName;
+    }
 
     /**
      * @param string $name
      */
-    public function __construct(string $name)
+    public function __construct(string $internalName, string $name)
     {
+        $this->internalName = $internalName;
         $this->name = $name;
     }
 }
\ No newline at end of file
diff --git a/src/php/Importer/GameImporter.php b/src/php/Importer/GameImporter.php
index dd275db..965cbf3 100644
--- a/src/php/Importer/GameImporter.php
+++ b/src/php/Importer/GameImporter.php
@@ -3,14 +3,17 @@ declare(strict_types=1);
 
 namespace GamesShop\Importer;
 
+use Doctrine\Common\Collections\Criteria;
 use Doctrine\ORM\EntityManagerInterface;
 use Exception;
+use GamesShop\ContainerHandler;
 use GamesShop\Entities\Account\User;
 use GamesShop\Entities\Games\Game;
 use GamesShop\Entities\Games\Key;
 use GamesShop\Entities\Games\KeyAttribute;
 use GamesShop\Entities\Games\Store;
 use GamesShop\Entities\GamesList;
+use Monolog\Logger;
 use PhpOffice\PhpSpreadsheet\IOFactory;
 
 final class GameImporter
@@ -127,19 +130,27 @@ final class GameImporter
                 continue;
             }
             
-            $game = array_key_exists($values['name'], $foundGames) ? $foundGames[$values['name']] : null;
+            $internalName = $this->prepareGameName($values['name']);
+            $game = array_key_exists($internalName, $foundGames) ? $foundGames[$internalName] : null;
+            
+            ContainerHandler::get(Logger::class)->debug('importing game ' . $internalName);
             
             if ($game === null) {
-                $game = $this->entityManager->getRepository(Game::class)->findOneBy([ 'name' => $values['name'] ]);
+                $game = $this->entityManager->getRepository(Game::class)->matching(
+                    Criteria::create()
+                        ->where(Criteria::expr()->eq('name', $values['name']))
+                        ->orWhere(Criteria::expr()->eq('internalName', $internalName))
+                )->first();
             }
             
-            if ($game === null) {
-                $game = new Game($values['name']);
+            if ($game === false) {
+                $game = new Game($internalName, $values['name']);
                 $this->entityManager->persist($game);
             }
             
-            $foundGames[$values['name']] = $game;
-
+            $foundGames[$internalName] = $game;
+            $game->setInternalName($internalName);
+            
             $key = new Key(
                 $game,
                 $list,
@@ -174,4 +185,20 @@ final class GameImporter
 
         return Store::EXTERNAL;
     }
+
+    private function prepareGameName(string $name): string
+    {
+        $replacements = [
+            ':' => '',
+            '-' => '',
+            ',' => '',
+            '!' => '',
+            '?' => '',
+            '  ' => ' ',
+            ' ' => '_',
+        ];
+        
+        $name = strtoupper($name);
+        return str_replace(array_keys($replacements), array_values($replacements), $name);
+    }
 }
\ No newline at end of file