gnu: Add kspaceduel.

* gnu/packages/games.scm (kspaceduel): New variable.

gnu/packages/games.scm

@@ -9123,3 +9123,40 @@ taken to the next stage with slightly increased game speed
 
 This package is part of the KDE games module.")
     (license (list license:gpl2+ license:fdl1.2+))))
+
+(define-public kspaceduel
+  (package
+    (name "kspaceduel")
+    (version "19.08.3")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "mirror://kde/stable/applications/" version
+                           "/src/kspaceduel-" version ".tar.xz"))
+       (sha256
+        (base32 "1hppni0ihs7psc0dly5rxyy2a38nzhlig9yfyhi3lkh36z05pql8"))))
+    (properties `((tags . ("Desktop" "KDE" "Games"))))
+    (build-system qt-build-system)
+    (native-inputs
+     `(("extra-cmake-modules" ,extra-cmake-modules)
+       ("kdoctools" ,kdoctools)))
+    (inputs
+     `(("kcompletion" ,kcompletion)
+       ("kconfig" ,kconfig)
+       ("kconfigwidgets" ,kconfigwidgets)
+       ("kcoreaddons" ,kcoreaddons)
+       ("kcrash" ,kcrash)
+       ("kdbusaddons" ,kdbusaddons)
+       ("ki18n" ,ki18n)
+       ("kxmlgui" ,kxmlgui)
+       ("libkdegames" ,libkdegames)
+       ("qtbase" ,qtbase)
+       ("qtdeclarative" ,qtdeclarative)
+       ("qtsvg" ,qtsvg)))
+    (home-page "https://games.kde.org/")
+    (synopsis "Two player game with shooting spaceships flying around a sun")
+    (description "KSpaceduel is a space battle game for one or two players,
+where two ships fly around a star in a struggle to be the only survivor.
+
+This package is part of the KDE games module.")
+    (license (list license:gpl2+ license:fdl1.2+))))