gnu: Add ksnakeduel.

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

gnu/packages/games.scm

@@ -9241,3 +9241,43 @@ are your only weapons against the never-ending stream of mindless automatons.
 
 This package is part of the KDE games module.")
     (license (list license:gpl2+ license:fdl1.2+))))
+
+(define-public ksnakeduel
+  (package
+    (name "ksnakeduel")
+    (version "19.08.3")
+    (source
+     (origin
+      (method url-fetch)
+      (uri (string-append "mirror://kde/stable/applications/" version
+                          "/src/ksnakeduel-" version ".tar.xz"))
+      (sha256
+       (base32 "0mprrnpax8pv7ab36zwhvdfj8id52w8g6x76nnj8qvkdlkjiqdnn"))))
+    (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)
+       ("kguiaddons" ,kguiaddons)
+       ("ki18n" ,ki18n)
+       ("kxmlgui" ,kxmlgui)
+       ("libkdegames" ,libkdegames)
+       ("qtbase" ,qtbase)
+       ("qtdeclarative" ,qtdeclarative)
+       ("qtsvg" ,qtsvg)))
+    (home-page "https://games.kde.org/")
+    (synopsis "Snake race played against the computer")
+    (description "KSnakeDuel is a fast action game where you steer a snake
+which has to eat food.  While eating the snake grows.  But once a player
+collides with the other snake or the wall the game is lost.  This becomes of
+course more and more difficult the longer the snakes grow.
+
+This package is part of the KDE games module.")
+    (license (list license:gpl2+ license:fdl1.2+))))