diff --git a/MyMcRealms/Controllers/WorldsController.cs b/MyMcRealms/Controllers/WorldsController.cs
index f8fd5bc..c094a0e 100644
--- a/MyMcRealms/Controllers/WorldsController.cs
+++ b/MyMcRealms/Controllers/WorldsController.cs
@@ -2,7 +2,9 @@
 using MyMcRealms.Attributes;
 using MyMcRealms.MyMcAPI.Responses;
 using MyMcRealms.Responses;
+using Newtonsoft.Json;
 using Semver;
+using System.Text.Json;
 
 namespace MyMcRealms.Controllers
 {
@@ -72,7 +74,7 @@ namespace MyMcRealms.Controllers
                 }
             }
 
-                ServersResponse servers = new()
+            ServersResponse servers = new()
             {
                 Servers = allWorlds
             };
@@ -113,6 +115,12 @@ namespace MyMcRealms.Controllers
                 whitelistedPlayers.Add(whitelistedPlayer);
             }
 
+            string cookie = Request.Headers.Cookie;
+            string gameVerision = cookie.Split(";")[2].Split("=")[1];
+
+            int versionsCompared = SemVersion.Parse(gameVerision, SemVersionStyles.OptionalPatch).ComparePrecedenceTo(SemVersion.Parse(world.GameVersion, SemVersionStyles.OptionalPatch));
+            string isCompatible = versionsCompared == 0 ? "COMPATIBLE" : versionsCompared < 0 ? "NEEDS_DOWNGRADE" : "NEEDS_UPGRADE";
+
             WorldResponse response = new()
             {
                 Id = wId,
@@ -132,7 +140,20 @@ namespace MyMcRealms.Controllers
                 DaysLeft = 7,
                 Expired = false,
                 ExpiredTrial = false,
-                ActiveVersion = world.GameVersion
+                ActiveVersion = world.GameVersion,
+                Slots =
+                [
+                    new()
+                    {
+                        SlotId = 1,
+                        Options = JsonConvert.SerializeObject(new
+                        {
+                            slotName = "my-mc.link",
+                            version = world.GameVersion,
+                            compatibility = isCompatible,
+                        })
+                    }
+                ]
             };
 
             return Ok(response);
diff --git a/MyMcRealms/Responses/SlotResponse.cs b/MyMcRealms/Responses/SlotResponse.cs
new file mode 100644
index 0000000..d69ac8d
--- /dev/null
+++ b/MyMcRealms/Responses/SlotResponse.cs
@@ -0,0 +1,8 @@
+namespace MyMcRealms.Responses
+{
+    public class SlotResponse
+    {
+        public int SlotId { get; set; }
+        public string Options { get; set; } = null!;
+    }
+}
diff --git a/MyMcRealms/Responses/WorldResponse.cs b/MyMcRealms/Responses/WorldResponse.cs
index 5bd793f..7726cfd 100644
--- a/MyMcRealms/Responses/WorldResponse.cs
+++ b/MyMcRealms/Responses/WorldResponse.cs
@@ -18,7 +18,7 @@ namespace MyMcRealms.Responses
         public int? MinigameId { get; set; }
         public string? MinigameImage { get; set; }
         public int ActiveSlot { get; set; } = 1;
-        public JsonDocument[] Slots { get; set; } = [];
+        public List<SlotResponse> Slots { get; set; } = [];
         public bool Member { get; set; } = false;
         public string RemoteSubscriptionId { get; set; } = Guid.NewGuid().ToString();
         public int DaysLeft { get; set; } = 30;