diff --git a/CMake/Assets.cmake b/CMake/Assets.cmake
index a299ea05e..73e6d3b59 100644
--- a/CMake/Assets.cmake
+++ b/CMake/Assets.cmake
@@ -159,6 +159,8 @@ set(devilutionx_assets
   gendata/cutstartw.pcx
   Levels/L1Data/SklKngT.dun
   Levels/L2Data/BonechaT.dun
+  NLevels/L5Data/cornerstone.dun
+  NLevels/L5Data/uberroom.dun
   ui_art/black_diablo.pcx
   ui_art/black_hellfire.pcx
   ui_art/creditsw.pcx
diff --git a/Packaging/resources/assets/NLevels/L5Data/cornerstone.dun b/Packaging/resources/assets/NLevels/L5Data/cornerstone.dun
new file mode 100644
index 000000000..486bb366d
Binary files /dev/null and b/Packaging/resources/assets/NLevels/L5Data/cornerstone.dun differ
diff --git a/Packaging/resources/assets/NLevels/L5Data/uberroom.dun b/Packaging/resources/assets/NLevels/L5Data/uberroom.dun
new file mode 100644
index 000000000..1e5e77397
Binary files /dev/null and b/Packaging/resources/assets/NLevels/L5Data/uberroom.dun differ
diff --git a/Source/levels/crypt.cpp b/Source/levels/crypt.cpp
index f1f648256..807a3f598 100644
--- a/Source/levels/crypt.cpp
+++ b/Source/levels/crypt.cpp
@@ -1,5 +1,6 @@
 #include "levels/crypt.h"
 
+#include "engine/load_file.hpp"
 #include "engine/point.hpp"
 #include "items.h"
 #include "levels/drlg_l1.h"
@@ -192,30 +193,6 @@ const Miniset CryptStar {
 	}
 };
 
-const Miniset UberRoomPattern {
-	{ 4, 6 },
-	{},
-	{
-	    { 115, 130, 6, 13 },
-	    { 129, 108, 1, 13 },
-	    { 1, 107, 103, 13 },
-	    { 146, 106, 102, 13 },
-	    { 129, 168, 1, 13 },
-	    { 7, 2, 3, 13 },
-	}
-};
-const Miniset CornerstoneRoomPattern {
-	{ 5, 5 },
-	{},
-	{
-	    { 4, 2, 2, 2, 6 },
-	    { 1, 111, 172, 13, 1 },
-	    { 1, 172, 13, 13, 25 },
-	    { 1, 13, 13, 13, 1 },
-	    { 7, 2, 2, 2, 3 },
-	}
-};
-
 enum Tile : uint8_t {
 	// clang-format off
 	VWall          =   1,
@@ -707,18 +684,22 @@ void SetCryptRoom()
 	IsUberRoomOpened = false;
 	IsUberLeverActivated = false;
 
-	SetPiece = { position, UberRoomPattern.size };
+	auto dunData = LoadFileInMem<uint16_t>("NLevels\\L5Data\\uberroom.dun");
 
-	UberRoomPattern.place(position, true);
+	SetPiece = { position, { dunData[0], dunData[1] } };
+
+	PlaceDunTiles(dunData.get(), position, 0);
 }
 
 void SetCornerRoom()
 {
 	Point position = SelectChamber();
 
-	SetPiece = { position, CornerstoneRoomPattern.size };
+	auto dunData = LoadFileInMem<uint16_t>("NLevels\\L5Data\\cornerstone.dun");
+
+	SetPiece = { position, { dunData[0], dunData[1] } };
 
-	CornerstoneRoomPattern.place(position, true);
+	PlaceDunTiles(dunData.get(), position, 0);
 }
 
 void FixCryptDirtTiles()
diff --git a/test/drlg_l1_test.cpp b/test/drlg_l1_test.cpp
index ca60c8993..ef7e026e1 100644
--- a/test/drlg_l1_test.cpp
+++ b/test/drlg_l1_test.cpp
@@ -190,6 +190,8 @@ TEST(Drlg_l1, CreateL5Dungeon_crypt_1_2122696790)
 {
 	LoadExpectedLevelData("hellfire/21-2122696790.dun");
 
+	paths::SetAssetsPath(paths::BasePath() + "/assets");
+
 	TestCreateDungeon(21, 2122696790, ENTRY_TWARPDN);
 	EXPECT_EQ(ViewPosition, Point(61, 81));
 	TestCreateDungeon(21, 2122696790, ENTRY_PREV);
@@ -224,6 +226,8 @@ TEST(Drlg_l1, CreateL5Dungeon_crypt_4_1324803725)
 {
 	LoadExpectedLevelData("hellfire/24-1324803725.dun");
 
+	paths::SetAssetsPath(paths::BasePath() + "/assets");
+
 	TestCreateDungeon(24, 1324803725, ENTRY_MAIN);
 	EXPECT_EQ(ViewPosition, Point(79, 47));
 }