diff --git a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/standard/SegmentedLibraryRoom.java b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/standard/SegmentedLibraryRoom.java
new file mode 100644
index 000000000..8cd982a53
--- /dev/null
+++ b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/standard/SegmentedLibraryRoom.java
@@ -0,0 +1,113 @@
+/*
+ * Pixel Dungeon
+ * Copyright (C) 2012-2015 Oleg Dolya
+ *
+ * Shattered Pixel Dungeon
+ * Copyright (C) 2014-2020 Evan Debenham
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>
+ */
+
+package com.shatteredpixel.shatteredpixeldungeon.levels.rooms.standard;
+
+import com.shatteredpixel.shatteredpixeldungeon.levels.Level;
+import com.shatteredpixel.shatteredpixeldungeon.levels.Terrain;
+import com.shatteredpixel.shatteredpixeldungeon.levels.painters.Painter;
+import com.watabou.utils.Point;
+import com.watabou.utils.Random;
+import com.watabou.utils.Rect;
+
+//FIXME some copypasta from segmented room with changed constants in here, might want to externalize
+public class SegmentedLibraryRoom extends StandardRoom {
+
+	{
+		joinable = false;
+	}
+
+	@Override
+	public float[] sizeCatProbs() {
+		return new float[]{0, 3, 1};
+	}
+
+	@Override
+	public void paint( Level level ) {
+		Painter.fill( level, this, Terrain.WALL );
+		Painter.fill( level, this, 1 , Terrain.BOOKSHELF );
+		Painter.fill( level, this, 2 , Terrain.EMPTY_SP );
+
+		for (Door door : connected.values()) {
+			door.set( Door.Type.REGULAR );
+			//set door areas to be empty to help with create walls logic
+			Painter.drawInside(level, this, door, 2, Terrain.EMPTY_SP);
+		}
+
+		createWalls( level, new Rect(left+2, top+2, right-2, bottom-2));
+	}
+
+	private void createWalls( Level level, Rect area ){
+		if (Math.max(area.width()+1, area.height()+1) < 4
+				|| Math.min(area.width()+1, area.height()+1) < 3){
+			return;
+		}
+
+		int tries = 10;
+
+		//splitting top/bottom
+		if (area.width() > area.height() || (area.width() == area.height() && Random.Int(2) == 0)){
+
+			do{
+				int splitX = Random.IntRange(area.left+2, area.right-2);
+
+				if (level.map[splitX + level.width()*(area.top-1)] == Terrain.BOOKSHELF
+						&& level.map[splitX + level.width()*(area.bottom+1)] == Terrain.BOOKSHELF){
+					tries = 0;
+
+					Painter.drawLine(level, new Point(splitX, area.top), new Point(splitX, area.bottom), Terrain.BOOKSHELF);
+
+					int spaceTop = Random.IntRange(area.top, area.bottom-1);
+					Painter.set(level, splitX, spaceTop, Terrain.EMPTY_SP);
+					//Painter.set(level, splitX, spaceTop+1, Terrain.EMPTY);
+
+					createWalls(level, new Rect(area.left, area.top, splitX-1, area.bottom));
+					createWalls(level, new Rect(splitX+1, area.top, area.right, area.bottom));
+				}
+
+			} while (--tries > 0);
+
+			//splitting left/right
+		} else {
+
+			do{
+				int splitY = Random.IntRange(area.top+2, area.bottom-2);
+
+				if (level.map[area.left-1 + level.width()*splitY] == Terrain.BOOKSHELF
+						&& level.map[area.right+1 + level.width()*splitY] == Terrain.BOOKSHELF){
+					tries = 0;
+
+					Painter.drawLine(level, new Point(area.left, splitY), new Point(area.right, splitY), Terrain.BOOKSHELF);
+
+					int spaceLeft = Random.IntRange(area.left, area.right-1);
+					Painter.set(level, spaceLeft, splitY, Terrain.EMPTY_SP);
+					//Painter.set(level, spaceLeft+1, splitY, Terrain.EMPTY);
+
+					createWalls(level, new Rect(area.left, area.top, area.right, splitY-1));
+					createWalls(level, new Rect(area.left, splitY+1, area.right, area.bottom));
+				}
+
+			} while (--tries > 0);
+
+		}
+	}
+
+}
diff --git a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/standard/StandardRoom.java b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/standard/StandardRoom.java
index afb060a83..1ec785f96 100644
--- a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/standard/StandardRoom.java
+++ b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/standard/StandardRoom.java
@@ -120,6 +120,7 @@ public abstract class StandardRoom extends Room {
 
 		rooms.add(HallwayRoom.class);
 		rooms.add(PillarsRoom.class);
+		rooms.add(SegmentedLibraryRoom.class);
 
 		rooms.add(RuinsRoom.class);
 		rooms.add(SkullsRoom.class);
@@ -139,21 +140,21 @@ public abstract class StandardRoom extends Room {
 	
 	private static float[][] chances = new float[27][];
 	static {
-		chances[1] =  new float[]{15,  10,10,5, 0,0, 0,0, 0,0, 0,0,    1,0,1,0,1,0,1,1,0,0};
-		chances[2] =  new float[]{15,  10,10,5, 0,0, 0,0, 0,0, 0,0,    1,1,1,1,1,1,1,1,1,1};
+		chances[1] =  new float[]{15,  10,10,5, 0,0, 0,0, 0,0,0, 0,0,    1,0,1,0,1,0,1,1,0,0};
+		chances[2] =  new float[]{15,  10,10,5, 0,0, 0,0, 0,0,0, 0,0,    1,1,1,1,1,1,1,1,1,1};
 		chances[4] =  chances[3] = chances[2];
-		chances[5] =  new float[]{15,  10,10,0, 0,0, 0,0, 0,0, 0,0,    0,0,0,0,0,0,0,0,0,0};
+		chances[5] =  new float[]{15,  10,10,0, 0,0, 0,0, 0,0,0, 0,0,    0,0,0,0,0,0,0,0,0,0};
 
-		chances[6] =  new float[]{20,  0,0,0, 15,5, 0,0, 0,0, 0,0,     1,1,1,1,1,1,1,1,1,1};
+		chances[6] =  new float[]{20,  0,0,0, 15,5, 0,0, 0,0,0, 0,0,     1,1,1,1,1,1,1,1,1,1};
 		chances[10] = chances[9] = chances[8] = chances[7] = chances[6];
 
-		chances[11] = new float[]{20,  0,0,0, 0,0, 15,5, 0,0, 0,0,     1,1,1,1,1,1,1,1,1,1};
+		chances[11] = new float[]{20,  0,0,0, 0,0, 15,5, 0,0,0, 0,0,     1,1,1,1,1,1,1,1,1,1};
 		chances[15] = chances[14] = chances[13] = chances[12] = chances[11];
 
-		chances[16] = new float[]{20,  0,0,0, 0,0, 0,0, 15,5, 0,0,     1,1,1,1,1,1,1,1,1,1};
+		chances[16] = new float[]{15,  0,0,0, 0,0, 0,0, 10,10,5, 0,0,    1,1,1,1,1,1,1,1,1,1};
 		chances[20] = chances[19] = chances[18] = chances[17] = chances[16];
 
-		chances[21] = new float[]{20,  0,0,0, 0,0, 0,0, 0,0, 15,5,     1,1,1,1,1,1,1,1,1,1};
+		chances[21] = new float[]{20,  0,0,0, 0,0, 0,0, 0,0,0, 15,5,     1,1,1,1,1,1,1,1,1,1};
 		chances[26] = chances[25] = chances[24] = chances[23] = chances[22] = chances[21];
 	}