diff --git a/pkgs/applications/audio/orca-c/default.nix b/pkgs/applications/audio/orca-c/default.nix
new file mode 100644
index 000000000000..3a4f4b2ce2b8
--- /dev/null
+++ b/pkgs/applications/audio/orca-c/default.nix
@@ -0,0 +1,31 @@
+{ stdenv, fetchFromGitHub, ncurses, portmidi }:
+stdenv.mkDerivation {
+  pname = "orca-c";
+
+  version = "git-2020-05-01";
+
+  src = fetchFromGitHub {
+    owner = "hundredrabbits";
+    repo = "Orca-c";
+    rev = "d7a3b169c5ed0b06a9ad0fdb3057704da9a0b6ce";
+    sha256 = "101y617a295hzwr98ykvza1sycxlk29kzxn2ybjwc718r0alkbzz";
+  };
+
+  buildInputs = [ ncurses portmidi ];
+
+  patchPhase = ''
+    patchShebangs tool
+  '';
+
+  installPhase = ''
+    mkdir -p $out/bin
+    install build/orca $out/bin/orca
+  '';
+
+  meta = with stdenv.lib; {
+    description = "An esoteric programming language designed to quickly create procedural sequencers.";
+    homepage = "https://github.com/hundredrabbits/Orca-c";
+    license = licenses.mit;
+    platforms = platforms.all;
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 178ee548545a..cfea73736d6e 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -21114,6 +21114,8 @@ in
     inherit (pkgs) pkgconfig;
   };
 
+  orca-c = callPackage ../applications/audio/orca-c {};
+
   osm2xmap = callPackage ../applications/misc/osm2xmap {
     libyamlcpp = libyamlcpp_0_3;
   };