diff --git a/common.mk b/common.mk
index 6b0747f..b50a0b1 100644
--- a/common.mk
+++ b/common.mk
@@ -31,7 +31,7 @@ OBJS += debris.o destructable.o door.o draw.o
 OBJS += effects.o entities.o exit.o explosions.o eyeDroidCommander.o
 OBJS += fleshChunk.o frost.o
 OBJS += game.o
-OBJS += heart.o hub.o hud.o
+OBJS += heart.o horizontalDoor.o hub.o hud.o
 OBJS += init.o infoPoint.o input.o io.o item.o items.o
 OBJS += key.o keycard.o
 OBJS += lookup.o
diff --git a/src/world/entities/structures/horizontalDoor.c b/src/world/entities/structures/horizontalDoor.c
new file mode 100644
index 0000000..57a2f21
--- /dev/null
+++ b/src/world/entities/structures/horizontalDoor.c
@@ -0,0 +1,49 @@
+/*
+Copyright (C) 2018 Parallel Realities
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation; either version 2
+of the License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+*/
+
+#include "horizontalDoor.h"
+
+void initHorizontalDoor(Entity *e)
+{
+	initEntity(e);
+	
+	e->sprite[0] = e->sprite[1] = e->sprite[2] = getSpriteIndex("HorizonalDoor");
+}
+
+void initBronzeHorizontalDoor(Entity *e)
+{
+	initHorizontalDoor(e);
+	
+	STRNCPY(e->requiredKey, "Bronze Key", MAX_NAME_LENGTH);
+}
+
+void initSilverHorizontalDoor(Entity *e)
+{
+	initHorizontalDoor(e);
+	
+	STRNCPY(e->requiredKey, "Silver Key", MAX_NAME_LENGTH);
+}
+
+void initGoldHorizontalDoor(Entity *e)
+{
+	initHorizontalDoor(e);
+	
+	STRNCPY(e->requiredKey, "Gold Key", MAX_NAME_LENGTH);
+}
diff --git a/src/world/entities/structures/horizontalDoor.h b/src/world/entities/structures/horizontalDoor.h
new file mode 100644
index 0000000..d3c19c9
--- /dev/null
+++ b/src/world/entities/structures/horizontalDoor.h
@@ -0,0 +1,24 @@
+/*
+Copyright (C) 2018 Parallel Realities
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation; either version 2
+of the License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+*/
+
+#include "../../../common.h"
+
+extern void initEntity(Entity *e);
+extern int getSpriteIndex(char *name);