diff --git a/YAMS-LIB/Program.cs b/YAMS-LIB/Program.cs
index 8101f7a..4713d83 100644
--- a/YAMS-LIB/Program.cs
+++ b/YAMS-LIB/Program.cs
@@ -579,8 +579,6 @@ public static void Main(string am2rPath, string outputAm2rPath, string jsonPath)
         // Set option on whether supers can destroy missile doors
         if (seedObject.Patches.CanUseSupersOnMissileDoors) characterVarsCode.ReplaceGMLInCode("global.canUseSupersOnMissileDoors = 0", "global.canUseSupersOnMissileDoors = 1");
 
-        // TODO: For the future, with room rando, go through each door and modify where it leads to
-
         // Add in-game Hints
         AddInGameHints.Apply(gmData, decompileContext, seedObject);
 
@@ -590,6 +588,9 @@ public static void Main(string am2rPath, string outputAm2rPath, string jsonPath)
         // Pipe rando
         PipeRando.Apply(gmData, decompileContext, seedObject);
 
+        // Entrance rando
+        EntranceRando.Apply(gmData, decompileContext, seedObject);
+
         // Make Bosses now spawns PB drops on death
         gmData.Code.ByName("gml_Script_spawn_many_powerups").ReplaceGMLInCode("if ((global.hasBombs == 0 && global.maxpbombs > 0) || (oControl.mod_insanitymode == 1 && global.maxpbombs > 0))", "if (global.maxpbombs > 0)");
 
diff --git a/YAMS-LIB/SeedObject.cs b/YAMS-LIB/SeedObject.cs
index 1825030..ea25c98 100644
--- a/YAMS-LIB/SeedObject.cs
+++ b/YAMS-LIB/SeedObject.cs
@@ -34,6 +34,10 @@ public class SeedObject
     [JsonPropertyName("pipes")]
     public Dictionary<uint, PipeObject> PipeObjects = new Dictionary<uint, PipeObject>();
 
+    [JsonInclude]
+    [JsonPropertyName("entrances")]
+    public Dictionary<uint, EntranceObject> EntranceObjects = new Dictionary<uint, EntranceObject>();
+
     [JsonInclude]
     [JsonPropertyName("starting_items")]
     public Dictionary<ItemEnum, int> StartingItems = new Dictionary<ItemEnum, int>();
@@ -670,6 +674,21 @@ public class PipeObject
     public string Room = "";
 }
 
+public class EntranceObject
+{
+    [JsonInclude]
+    [JsonPropertyName("dest_id")]
+    public uint DestEntranceID;
+
+    [JsonInclude]
+    [JsonPropertyName("dest_direction")]
+    public DoorFacingDirection Direction;
+
+    [JsonInclude]
+    [JsonPropertyName("dest_room")]
+    public string Room = "";
+}
+
 public struct Coordinate
 {
     [JsonInclude]
diff --git a/YAMS-LIB/patches/EntranceRando.cs b/YAMS-LIB/patches/EntranceRando.cs
new file mode 100644
index 0000000..a9d389f
--- /dev/null
+++ b/YAMS-LIB/patches/EntranceRando.cs
@@ -0,0 +1,75 @@
+using UndertaleModLib;
+using UndertaleModLib.Decompiler;
+using UndertaleModLib.Models;
+
+namespace YAMS_LIB.patches;
+
+public class EntranceRando
+{
+    public static void Apply(UndertaleData gmData, GlobalDecompileContext decompileContext, SeedObject seedObject)
+    {
+        foreach (var entrance in seedObject.EntranceObjects)
+        {
+            foreach (UndertaleRoom? room in gmData.Rooms)
+            {
+                foreach (UndertaleRoom.GameObject? sourceEntrance in room.GameObjects)
+                {
+                    if (sourceEntrance.InstanceID != entrance.Key) continue;
+
+                    if (entrance.Value.Direction == DoorFacingDirection.Invalid) throw new NotSupportedException("Entrance must have a valid direction");
+
+                    var targetRoom = gmData.Rooms.ByName(entrance.Value.Room);
+                    var targetEntrance = targetRoom.GameObjects.ByInstanceID(entrance.Value.DestEntranceID);
+
+                    int xMod = 0;
+                    int yMod = 0;
+                    int finalDirection = 0;
+                    int camYMod = 0;
+                    int transX = 0;
+                    int transY = 0;
+
+                    switch (entrance.Value.Direction)
+                    {
+                        case DoorFacingDirection.Right:
+                            xMod = 16;
+                            finalDirection = 0;
+                            camYMod = 120;
+                            transX = (targetEntrance.X + 4) % 320;
+                            transY = ((targetEntrance.Y) % 240);
+                            break;
+                        case DoorFacingDirection.Left:
+                            xMod = -16;
+                            finalDirection = 180;
+                            camYMod = -120;
+                            transX = (targetEntrance.X - 4) % 320;
+                            transY = ((targetEntrance.Y) % 240);
+                            break;
+                        // At one point:tm: also implement up and down
+                    }
+
+                    int targetX = targetEntrance.X + xMod;
+                    int targetY = targetEntrance.Y + yMod;
+
+                    int finalHeight = 64; // TODO: this is a broad assumption for now, change this later.
+
+                    int camStartX = targetEntrance.X + (xMod * 10);
+
+                    // if less than y = 136, use y = 120, otherwise use y
+                    var camStartY = targetEntrance.Y < 136 ? 120 : targetEntrance.Y;
+
+                    sourceEntrance.CreationCode.SubstituteGMLCode($$"""
+                    targetroom = {{targetRoom.Name.Content}}
+                    targetx = {{targetX}}
+                    targety = {{targetY}}
+                    height = {{finalHeight}}
+                    direction = {{finalDirection}}
+                    camstartx = {{camStartX}}
+                    camstarty = {{camStartY}}
+                    transitionx = {{transX}}
+                    transitiony = {{transY}}
+                    """);
+                }
+            }
+        }
+    }
+}