diff --git a/maps/empty.cub b/maps/bad_empty.cub
similarity index 100%
rename from maps/empty.cub
rename to maps/bad_empty.cub
diff --git a/maps/empty_textures.cub b/maps/bad_empty_textures.cub
similarity index 100%
rename from maps/empty_textures.cub
rename to maps/bad_empty_textures.cub
diff --git a/maps/large.cub b/maps/large.cub
deleted file mode 100644
index a146f21..0000000
--- a/maps/large.cub
+++ /dev/null
@@ -1,194 +0,0 @@
-SO ./textures/chiseled_tuff.xpm
-NO ./textures/chiseled_tuff_bricks.xpm
-WE ./textures/chiseled_stone_bricks.xpm
-EA ./textures/chiseled_tuff_bricks_top.xpm
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diff --git a/maps/valid_02.cub b/maps/valid_02.cub
index c467d8c..6544dbf 100644
--- a/maps/valid_02.cub
+++ b/maps/valid_02.cub
@@ -1,7 +1,8 @@
-SO ./textures/b.xpm
-NO ./textures/wasteland_32.xpm
-WE ./textures/sandy_32.xpm
-EA 									   ./textures/cobblestone_32.xpm
+SO ./textures/chiseled_tuff.xpm
+NO ./textures/chiseled_tuff_bricks.xpm
+WE ./textures/chiseled_stone_bricks.xpm
+EA ./textures/chiseled_tuff_bricks_top.xpm
+
 
 F 0,255,0
 C 0,123,255
diff --git a/maps/valid_04_corridor.cub b/maps/valid_04_corridor.cub
new file mode 100644
index 0000000..171ac60
--- /dev/null
+++ b/maps/valid_04_corridor.cub
@@ -0,0 +1,20 @@
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+NO ./textures/chiseled_tuff_bricks.xpm
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