diff --git a/emulators/Makefile b/emulators/Makefile
index 7fe9ffa19859..7b04d6696c73 100644
--- a/emulators/Makefile
+++ b/emulators/Makefile
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.347 2022/12/15 11:48:59 nia Exp $
+# $NetBSD: Makefile,v 1.348 2023/05/20 12:47:47 thorpej Exp $
 #
 
 COMMENT=	Emulators for other machines and systems
@@ -143,6 +143,7 @@ SUBDIR+=	lrmi
 SUBDIR+=	m1
 SUBDIR+=	makeppf
 SUBDIR+=	mame
+SUBDIR+=	marduk
 SUBDIR+=	mednafen
 SUBDIR+=	mednaffe
 SUBDIR+=	melonds
diff --git a/emulators/marduk/DESCR b/emulators/marduk/DESCR
new file mode 100644
index 000000000000..be73de83ec6a
--- /dev/null
+++ b/emulators/marduk/DESCR
@@ -0,0 +1,3 @@
+Marduk is an attempt to emulate the obscure Canadian NABU Personal Computer.
+It has quickly grown from a barely functional emulator to a fairly complete
+(if bare-bones) and reasonably portable program.
diff --git a/emulators/marduk/Makefile b/emulators/marduk/Makefile
new file mode 100644
index 000000000000..bf5b371ed8b5
--- /dev/null
+++ b/emulators/marduk/Makefile
@@ -0,0 +1,41 @@
+# $NetBSD: Makefile,v 1.1 2023/05/20 12:47:47 thorpej Exp $
+
+# The author has not yet created any tags, but this is what it reports
+# as its version.
+MARDUK_VERSION=	0.26e
+
+DISTNAME=	marduk-${MARDUK_VERSION}
+CATEGORIES=	devel
+MASTER_SITES=	${MASTER_SITE_GITHUB:=buricco/}
+GITHUB_TAG=	7cf954b7f9681daafa7240f49b7860f6f2107898
+
+MAINTAINER=	thorpej@NetBSD.org
+HOMEPAGE=	https://github.com/buricco/marduk
+COMMENT=	Portable emulator of the NABU Personal Computer
+LICENSE=	mit
+
+USE_TOOLS+=	pkg-config
+
+MARDUK_ROMDIR=	share/marduk
+
+INSTALLATION_DIRS=	bin ${MARDUK_ROMDIR}
+
+.include "../../mk/bsd.prefs.mk"
+
+CPPFLAGS+=	-DROM_PATHSPEC="\"${PREFIX}/${MARDUK_ROMDIR}\""
+CFLAGS+=	${CPPFLAGS}	# Makefile ignores CPPFLAGS
+
+do-build:
+	cd ${WRKSRC} && ${MAKE} CFLAGS=${CFLAGS:Q}
+
+do-install:
+	${INSTALL_PROGRAM} ${WRKSRC}/marduk ${DESTDIR}${PREFIX}/bin
+	${INSTALL_DATA} ${WRKSRC}/opennabu.bin \
+	    ${DESTDIR}${PREFIX}/${MARDUK_ROMDIR}
+
+.if ${OPSYS} != "Darwin"
+.include "../../x11/gtk3/buildlink3.mk"
+.endif
+
+.include "../../devel/SDL2/buildlink3.mk"
+.include "../../mk/bsd.pkg.mk"
diff --git a/emulators/marduk/PLIST b/emulators/marduk/PLIST
new file mode 100644
index 000000000000..2bb338e3bb66
--- /dev/null
+++ b/emulators/marduk/PLIST
@@ -0,0 +1,3 @@
+@comment $NetBSD: PLIST,v 1.1 2023/05/20 12:47:47 thorpej Exp $
+bin/marduk
+share/marduk/opennabu.bin
diff --git a/emulators/marduk/distinfo b/emulators/marduk/distinfo
new file mode 100644
index 000000000000..d8529cde563e
--- /dev/null
+++ b/emulators/marduk/distinfo
@@ -0,0 +1,8 @@
+$NetBSD: distinfo,v 1.1 2023/05/20 12:47:47 thorpej Exp $
+
+BLAKE2s (marduk-0.26e-7cf954b7f9681daafa7240f49b7860f6f2107898.tar.gz) = 175b7a8ad33282e6a34d6cc3db3166173f2639ee74eeaca6c7fcf2a02365a5a3
+SHA512 (marduk-0.26e-7cf954b7f9681daafa7240f49b7860f6f2107898.tar.gz) = abb364821abb457fe3eeedb975c812b170f5e41ab0bbc19b4184a055097c620c90f208ed49df5d801ec7f2d3557eabf61cf54e118145c1ca5b80cabd9744eb8b
+Size (marduk-0.26e-7cf954b7f9681daafa7240f49b7860f6f2107898.tar.gz) = 48799 bytes
+SHA1 (patch-Makefile) = 0e667cb949fbfe782e090786e34e7fd18fcabf07
+SHA1 (patch-disk.c) = a56d1cc888464545b2eb1819f3fa7294c3fb006c
+SHA1 (patch-main.c) = e45240edf8b625ea47ad164a660a1b501f109054
diff --git a/emulators/marduk/patches/patch-Makefile b/emulators/marduk/patches/patch-Makefile
new file mode 100644
index 000000000000..186b3994ce46
--- /dev/null
+++ b/emulators/marduk/patches/patch-Makefile
@@ -0,0 +1,31 @@
+$NetBSD: patch-Makefile,v 1.1 2023/05/20 12:47:47 thorpej Exp $
+
+Use SDL2 and GTK+-3.0 Cflags / Libs only when building files that need them.
+
+--- Makefile.orig	2023-05-20 12:24:50.772165900 +0000
++++ Makefile	2023-05-20 12:37:55.337663884 +0000
+@@ -21,13 +21,10 @@
+ # This should also work with Windows, using MinGW, if you do LIBS="-lws2_32"
+ # Build with CFLAGS=-DDEBUG for CPU trace (will be better integrated later)
+ 
+-CFLAGS := $(CFLAGS) `sdl2-config --cflags` `pkg-config gtk+-3.0 --cflags`
+-LIBS   := $(LIBS) `sdl2-config --libs` `pkg-config gtk+-3.0 --libs`
+-
+ all:	marduk
+ 
+ marduk:	dasm80.o disk.o emu2149.o main.o modem.o tms9918.o tms_util.o z80.o
+-	$(CC) $(CFLAGS) -o marduk dasm80.o disk.o emu2149.o main.o modem.o tms9918.o tms_util.o z80.o $(LIBS)
++	$(CC) $(CFLAGS) -o marduk dasm80.o disk.o emu2149.o main.o modem.o tms9918.o tms_util.o z80.o `sdl2-config --libs` `pkg-config gtk+-3.0 --libs`
+ 
+ dasm80.o:	dasm80.c z80.h
+ 	$(CC) $(CFLAGS) -c -o dasm80.o dasm80.c
+@@ -39,7 +36,8 @@ emu2149.o:	emu2149.c emu2149.h
+ 	$(CC) $(CFLAGS) -c -o emu2149.o emu2149.c
+ 
+ main.o:	main.c emu2149.h disk.h modem.h tms9918.h tms_util.h z80.h
+-	$(CC) $(CFLAGS) -c -o main.o main.c
++	$(CC) $(CFLAGS) `sdl2-config --cflags` `pkg-config gtk+-3.0 --cflags` \
++	    -c -o main.o main.c
+ 
+ modem.o:	modem.c modem.h
+ 	$(CC) $(CFLAGS) -c -o modem.o modem.c
diff --git a/emulators/marduk/patches/patch-disk.c b/emulators/marduk/patches/patch-disk.c
new file mode 100644
index 000000000000..de32a301dfc2
--- /dev/null
+++ b/emulators/marduk/patches/patch-disk.c
@@ -0,0 +1,21 @@
+$NetBSD: patch-disk.c,v 1.1 2023/05/20 12:47:47 thorpej Exp $
+
+Add missing return values from disksys_init() and disksys_deinit().
+
+--- disk.c.orig	2023-05-19 20:40:28
++++ disk.c	2023-05-19 20:40:43
+@@ -305,6 +305,7 @@ int disksys_init (void)
+  diag_printf ("Initializing disk system\n");
+  disksys_light=0;
+  mode=tick=subtick=0;
++ return 0;
+ }
+ 
+ int disksys_deinit (void)
+@@ -314,5 +315,6 @@ int disksys_deinit (void)
+  disktype[0]=disktype[1]=DISK_NONE;
+  diag_printf ("Shutting down disk system\n");
+  disksys_light=0;
++ return 0;
+ }
+ 
diff --git a/emulators/marduk/patches/patch-main.c b/emulators/marduk/patches/patch-main.c
new file mode 100644
index 000000000000..4af405d369ee
--- /dev/null
+++ b/emulators/marduk/patches/patch-main.c
@@ -0,0 +1,20 @@
+$NetBSD: patch-main.c,v 1.1 2023/05/20 12:47:47 thorpej Exp $
+
+Add a path prefix to the default boot ROM path until a more comprehensive
+solution is implemented upstream.
+
+--- main.c.orig	2023-05-13 00:28:06
++++ main.c	2023-05-20 00:04:49
+@@ -1714,7 +1714,11 @@ int main(int argc, char **argv)
+    * Default ROM is now OpenNabu (opennabu.bin).
+    * You can use actual Nabu firmware with the -4, -8 and -B switches.
+    */
+-  bios = OPENNABU;
++  bios =
++#ifdef ROM_PATHSPEC
++         ROM_PATHSPEC "/"
++#endif
++	 OPENNABU;
+   while (-1 != (e = getopt(argc, argv, "48B:jJS:P:Np:a:b:x:")))
+   {
+    switch (e)