diff --git a/include/dgn_file.h b/include/dgn_file.h
new file mode 100644
index 000000000..1146c41b7
--- /dev/null
+++ b/include/dgn_file.h
@@ -0,0 +1,76 @@
+/*	SCCS Id: @(#)dgn_file.h 3.3	93/01/17	*/
+/* Copyright (c) 1989 by M. Stephenson				  */
+/* NetHack may be freely redistributed.  See license for details. */
+
+#ifndef DGN_FILE_H
+#define DGN_FILE_H
+
+#ifndef ALIGN_H
+#include "align.h"
+#endif
+
+/*
+ * Structures manipulated by the dungeon loader & compiler
+ */
+
+struct	couple {
+	short	base, rand;
+};
+
+struct tmpdungeon {
+	char	name[24],
+		protoname[24];
+	struct	couple	lev;
+	int	flags,
+		chance,
+		levels,
+		branches,
+		entry_lev;		/* entry level for this dungeon */
+	char	boneschar;
+};
+
+struct tmplevel {
+	char	name[24];
+	struct	couple	lev;
+	int	chance, rndlevs, chain, flags;
+	char	boneschar;
+};
+
+struct tmpbranch {
+	char	name[24];	/* destination dungeon name */
+	struct	couple	lev;
+	int	chain;		/* index into tmplevel array (chained branch)*/
+	int	type;		/* branch type (see below) */
+	int	up;		/* branch is up or down */
+};
+
+/*
+ *	Values for type for tmpbranch structure.
+ */
+#define TBR_STAIR   0	/* connection with both ends having a staircase */
+#define TBR_NO_UP   1	/* connection with no up staircase */
+#define TBR_NO_DOWN 2	/* connection with no down staircase */
+#define TBR_PORTAL  3	/* portal connection */
+
+/*
+ *	Flags that map into the dungeon flags bitfields.
+ */
+#define TOWN	    1	/* levels only */
+#define HELLISH     2
+#define MAZELIKE    4
+#define ROGUELIKE   8
+
+#define D_ALIGN_NONE	0
+#define D_ALIGN_CHAOTIC	(AM_CHAOTIC << 4)
+#define D_ALIGN_NEUTRAL	(AM_NEUTRAL << 4)
+#define D_ALIGN_LAWFUL	(AM_LAWFUL << 4)
+
+#define D_ALIGN_MASK	0x70
+
+/*
+ *	Max number of prototype levels and branches.
+ */
+#define LEV_LIMIT	50
+#define BRANCH_LIMIT	32
+
+#endif /* DGN_FILE_H */