diff --git a/.mlvwm/apps/.AppsManifest b/.mlvwm/apps/.AppsManifest
index 1b60905..99a3f3c 100644
--- a/.mlvwm/apps/.AppsManifest
+++ b/.mlvwm/apps/.AppsManifest
@@ -23,6 +23,7 @@ Read .mlvwm/apps/qemu
 Read .mlvwm/apps/remmina
 Read .mlvwm/apps/retroarch
 Read .mlvwm/apps/scummvm
+Read .mlvwm/apps/simsu
 Read .mlvwm/apps/smplayer
 Read .mlvwm/apps/solvespace
 Read .mlvwm/apps/vimb
diff --git a/.mlvwm/apps/simsu b/.mlvwm/apps/simsu
new file mode 100644
index 0000000..c10df34
--- /dev/null
+++ b/.mlvwm/apps/simsu
@@ -0,0 +1,47 @@
+Menu Simsu-Game, Label "Game", Left
+"New" Action SendMessage C+N
+"Restart" Action SendMessage N+F5
+"" NonSelect
+"Print..." Action SendMessage C+P
+"" NonSelect
+"Details" NonSelect, Gray
+"" NonSelect
+"Quit" Action SendMessage C+Q
+END
+
+Menu Simsu-Move, Label "Move"
+"Undo" Action SendMessage C+Z
+"Redo" Action SendMessage CS+Z
+"" NonSelect
+"Check" Action SendMessage N+C
+"Hint" Action SendMessage N+F2
+END
+
+Menu Simsu-Settings, Label "Settings"
+"Auto Switch Modes" NonSelect, Gray
+"Widescreen Layout" NonSelect, Gray
+"" NonSelect
+"Manual Notes" NonSelect, Gray
+"Auto Clear Notes" NonSelect, Gray
+"Auto Fill Notes" NonSelect, Gray
+"" NonSelect
+"Application Language..." NonSelect, Gray
+END
+
+Menu Simsu-Help, Label "Help"
+"Controls" Action SendMessage N+F1
+"" NonSelect
+"About" NonSelect, Gray
+END
+
+MenuBar Simsu
+Simsu-Game
+Simsu-Move
+Simsu-Settings
+Simsu-Help
+END
+
+Style
+"simsu" NoSBarH, NoSBarV
+"simsu" MiniIcon simsu.xpm, MenuBar Simsu
+END
diff --git a/.mlvwm/pixmap/Makefile b/.mlvwm/pixmap/Makefile
index 38c6c20..177c756 100644
--- a/.mlvwm/pixmap/Makefile
+++ b/.mlvwm/pixmap/Makefile
@@ -48,6 +48,7 @@ build: build-init \
 	$(BUILD_DIR)/$(PIXMAP_DIR)/netsurf.xpm \
 	$(BUILD_DIR)/$(PIXMAP_DIR)/qemu.xpm \
 	$(BUILD_DIR)/$(PIXMAP_DIR)/scummvm.xpm \
+	$(BUILD_DIR)/$(PIXMAP_DIR)/simsu.xpm \
 	$(BUILD_DIR)/$(PIXMAP_DIR)/smplayer.xpm \
 	$(BUILD_DIR)/$(PIXMAP_DIR)/solvespace.xpm \
 	$(BUILD_DIR)/$(PIXMAP_DIR)/vimb.xpm \
@@ -267,6 +268,18 @@ $(TEMP_PIXMAP)/scummvm.ico:
 $(BUILD_DIR)/$(PIXMAP_DIR)/scummvm.xpm: $(TEMP_PIXMAP)/scummvm.ico
 	convert $(TEMP_PIXMAP)/scummvm.ico[8] -resize 16x16\> \
 		$(BUILD_DIR)/$(PIXMAP_DIR)/scummvm.xpm
+#
+# Simsu (Game)
+#
+$(TEMP_PIXMAP)/simsu-1.4.8.tar.bz2:
+	curl -# -L https://gottcode.org/simsu/download/?os=source \
+		-o $(TEMP_PIXMAP)/simsu-1.4.8.tar.bz2
+
+$(BUILD_DIR)/$(PIXMAP_DIR)/simsu.xpm: $(TEMP_PIXMAP)/simsu-1.4.8.tar.bz2
+	tar -xjf $(TEMP_PIXMAP)/simsu-1.4.8.tar.bz2 -C $(TEMP_PIXMAP) \
+		simsu-1.4.8/icons/hicolor/16x16/apps/simsu.png
+	convert $(TEMP_PIXMAP)/simsu-1.4.8/icons/hicolor/16x16/apps/simsu.png \
+		$(BUILD_DIR)/$(PIXMAP_DIR)/simsu.xpm
 
 #
 # SMPlayer (Media Player)
diff --git a/README.md b/README.md
index b49fb06..1ef23c9 100644
--- a/README.md
+++ b/README.md
@@ -310,6 +310,7 @@ Configurations for the following X11 applications are included:
 * [RetroArch](https://www.retroarch.com/)
 * [Remmina](https://remmina.org/)
 * [ScummVM](https://www.scummvm.org/)
+* [Simsu](https://gottcode.org/simsu/)
 * [SMPlayer](https://www.smplayer.info/)
 * [SolveSpace](https://solvespace.com/)
 * [Vimb](https://fanglingsu.github.io/vimb/)