gnu: Add 7kaa.

* gnu/packages/games.scm (7kaa): New variable.

gnu/packages/games.scm

@@ -47,6 +47,7 @@
 ;;; Copyright © 2019 Josh Holland <josh@inv.alid.pw>
 ;;; Copyright © 2017, 2019 Hartmut Goebel <h.goebel@crazy-compilers.com>
 ;;; Copyright © 2020 Alberto Eleuterio Flores Guerrero <barbanegra+guix@posteo.mx>
+;;; Copyright © 2020 Naga Malleswari <nagamalli@riseup.net>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -10319,3 +10320,35 @@ range with the objective to hit as many dummy targets as possible within
 soldiers, jeeps and tanks.  The gameplay is simple but it is not that easy to
 get high scores.")
     (license license:gpl2+)))
+
+(define-public 7kaa
+  (package
+    (name "7kaa")
+    (version "2.15.3")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "https://github.com/the3dfxdude/7kaa/"
+                           "releases/download/v" version "/"
+                           "7kaa-" version ".tar.xz"))
+       (sha256
+        (base32 "0blj47mcsfw1sn3465j6iham8m6ki07iggnq4q8nnaqnryx710jc"))))
+    (build-system gnu-build-system)
+    (native-inputs
+     `(("gettext" ,gettext-minimal)
+       ("pkg-config" ,pkg-config)))
+    (inputs
+     `(("curl" ,curl)
+       ("enet" ,enet)
+       ("openal" ,openal)
+       ("sdl2" ,sdl2)))
+    (home-page "https://7kfans.com/")
+    (synopsis "Seven Kingdoms Ancient Adversaries: real-time strategy game")
+    (description
+     "Seven Kingdoms, designed by Trevor Chan, brings a blend of Real-Time
+Strategy with the addition of trade, diplomacy, and espionage.  The game
+enables players to compete against up to six other kingdoms allowing players
+to conquer opponents by defeating them in war (with troops or machines),
+capturing their buildings with spies, or offering opponents money for their
+kingdom.")
+    (license license:gpl2+)))