diff --git a/database/migrations/structure/20210510_2000_challenge.sql b/database/migrations/structure/20210510_2000_challenge.sql
index 810d849..a5c4941 100644
--- a/database/migrations/structure/20210510_2000_challenge.sql
+++ b/database/migrations/structure/20210510_2000_challenge.sql
@@ -2,6 +2,7 @@ CREATE TABLE `challenges` (
   `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
   `token` int(10) unsigned NOT NULL,
   `time_limit` int(10) unsigned,
+  `time_limit_type` enum('game', 'round') NOT NULL DEFAULT 'game',
   `no_move` tinyint(1) NOT NULL DEFAULT 0,
   `no_pan` tinyint(1) NOT NULL DEFAULT 0,
   `no_zoom` tinyint(1) NOT NULL DEFAULT 0,
diff --git a/src/PersistentData/Model/Challenge.php b/src/PersistentData/Model/Challenge.php
index d947ae8..a484fe3 100644
--- a/src/PersistentData/Model/Challenge.php
+++ b/src/PersistentData/Model/Challenge.php
@@ -6,7 +6,7 @@ class Challenge extends Model
 {
     protected static string $table = 'challenges';
 
-    protected static array $fields = ['token', 'time_limit', 'no_move', 'no_pan', 'no_zoom', 'created'];
+    protected static array $fields = ['token', 'time_limit', 'time_limit_type', 'no_move', 'no_pan', 'no_zoom', 'created'];
 
     protected static array $relations = [];
 
@@ -14,6 +14,10 @@ class Challenge extends Model
 
     private ?int $timeLimit = null;
 
+    private static array $timeLimitTypes = ['game', 'round'];
+
+    private string $timeLimitType = 'game';
+
     private bool $noMove = false;
 
     private bool $noPan = false;
@@ -34,6 +38,13 @@ class Challenge extends Model
         }
     }
 
+    public function setTimeLimitType(string $timeLimitType): void
+    {
+        if (in_array($timeLimitType, self::$timeLimitTypes)) {
+            $this->timeLimitType = $timeLimitType;
+        }
+    }
+
     public function setNoMove(bool $noMove): void
     {
         $this->$noMove = $noMove;
@@ -69,6 +80,11 @@ class Challenge extends Model
         return $this->timeLimit;
     }
 
+    public function getTimeLimitType(): string
+    {
+        return $this->timeLimitType;
+    }
+
     public function getNoMove(): bool
     {
         return $this->noMove;