diff --git a/Formula/nethack.rb b/Formula/nethack.rb
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+++ b/Formula/nethack.rb
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+# Nethack the way God intended it to be played: from a terminal.
+
+class Nethack < Formula
+  desc "Single-player roguelike video game"
+  homepage "http://www.nethack.org/index.html"
+  url "https://downloads.sourceforge.net/project/nethack/nethack/3.6.0/nethack-360-src.tgz"
+  version "3.6.0"
+  sha256 "1ade698d8458b8d87a4721444cb73f178c74ed1b6fde537c12000f8edf2cb18a"
+  head "git://git.code.sf.net/p/nethack/NetHack", :branch => "NetHack-3.6.0"
+
+  bottle do
+    sha256 "084d5b20224c58b8564ddd42e689c4774be6ae25e59e22b5d48e2857bd14c57b" => :el_capitan
+    sha256 "866bd31a499ed58a1ae9cf2606e861bbde2a8077a9562c18499e913eb3251d6f" => :yosemite
+    sha256 "73ba72cfac3baf22f57532a0811e13ceab204022634bb730e34a7c9803352d04" => :mavericks
+  end
+
+  # Don't remove save folder
+  skip_clean "libexec/save"
+
+  def install
+    # Build everything in-order; no multi builds.
+    ENV.deparallelize
+
+    # Generate makefiles for OS X
+    cd "sys/unix" do
+      if MacOS.version >= :yosemite
+        hintfile = "macosx10.10"
+      elsif MacOS.version >= :lion
+        hintfile = "macosx10.7"
+      elsif MacOS.version >= :leopard
+        hintfile = "macosx10.5"
+      else
+        hintfile = "macosx"
+      end
+
+      inreplace "hints/#{hintfile}",
+                /^HACKDIR=.*/,
+                "HACKDIR=#{libexec}"
+
+      system "sh", "setup.sh", "hints/#{hintfile}"
+    end
+
+    # Enable wizard mode for all users
+    inreplace "sys/unix/sysconf",
+      /^WIZARDS=.*/,
+      "WIZARDS=*"
+
+    # Make the game
+    system "make", "install"
+    bin.install "src/nethack"
+    (libexec+"save").mkpath
+
+    # Enable `man nethack`
+    man6.install "doc/nethack.6"
+
+    # These need to be group-writable in multi-user situations
+    chmod "g+w", libexec
+    chmod "g+w", libexec+"save"
+  end
+end