diff --git a/pkgs/games/amoeba/default.nix b/pkgs/games/amoeba/default.nix
index 61f5a5bf824d..0e21a9a1b9ea 100644
--- a/pkgs/games/amoeba/default.nix
+++ b/pkgs/games/amoeba/default.nix
@@ -1,7 +1,7 @@
 { lib, stdenv, fetchurl, amoeba-data, alsa-lib, expat, freetype, gtk2, libvorbis, libGLU, xorg, pkg-config }:
 
 stdenv.mkDerivation rec {
-  name = "amoeba-${version}-${debver}";
+  pname = "amoeba";
   version = "1.1";
   debver = "29.1";
 
diff --git a/pkgs/games/crawl/default.nix b/pkgs/games/crawl/default.nix
index 02e34e5f749d..e5eea7ece628 100644
--- a/pkgs/games/crawl/default.nix
+++ b/pkgs/games/crawl/default.nix
@@ -7,7 +7,7 @@
 }:
 
 stdenv.mkDerivation rec {
-  name = "crawl-${version}${lib.optionalString tileMode "-tiles"}";
+  pname = "crawl${lib.optionalString tileMode "-tiles"}";
   version = "0.27.1";
 
   src = fetchFromGitHub {
diff --git a/pkgs/games/dwarf-fortress/dwarf-therapist/wrapper.nix b/pkgs/games/dwarf-fortress/dwarf-therapist/wrapper.nix
index 93f51df1819d..316d1308eb79 100644
--- a/pkgs/games/dwarf-fortress/dwarf-therapist/wrapper.nix
+++ b/pkgs/games/dwarf-fortress/dwarf-therapist/wrapper.nix
@@ -9,7 +9,8 @@ let
 in
 
 stdenv.mkDerivation {
-  name = "dwarf-therapist-${dwarf-therapist.version}";
+  pname = "dwarf-therapist";
+  version = dwarf-therapist.version;
 
   wrapper = substituteAll {
     src = ./dwarf-therapist.in;
diff --git a/pkgs/games/dwarf-fortress/unfuck.nix b/pkgs/games/dwarf-fortress/unfuck.nix
index 5b25cf4ff409..27b54667f0b9 100644
--- a/pkgs/games/dwarf-fortress/unfuck.nix
+++ b/pkgs/games/dwarf-fortress/unfuck.nix
@@ -72,7 +72,8 @@ let
 in
 
 stdenv.mkDerivation {
-  name = "dwarf_fortress_unfuck-${release.unfuckRelease}";
+  pname = "dwarf_fortress_unfuck";
+  version = release.unfuckRelease;
 
   src = fetchFromGitHub {
     owner = "svenstaro";
diff --git a/pkgs/games/dwarf-fortress/wrapper/default.nix b/pkgs/games/dwarf-fortress/wrapper/default.nix
index ce989b98ffbd..3d1c3ead0604 100644
--- a/pkgs/games/dwarf-fortress/wrapper/default.nix
+++ b/pkgs/games/dwarf-fortress/wrapper/default.nix
@@ -92,7 +92,8 @@ let
 in
 
 stdenv.mkDerivation {
-  name = "dwarf-fortress-${dwarf-fortress.dfVersion}";
+  pname = "dwarf-fortress";
+  version = dwarf-fortress.dfVersion;
 
   dfInit = substituteAll {
     name = "dwarf-fortress-init";
diff --git a/pkgs/games/gnubg/default.nix b/pkgs/games/gnubg/default.nix
index 7402049a9d82..6f50869e6c69 100644
--- a/pkgs/games/gnubg/default.nix
+++ b/pkgs/games/gnubg/default.nix
@@ -1,8 +1,8 @@
 { lib, stdenv, fetchurl, pkg-config, glib, python3, gtk2, readline }:
 
-let version = "1.06.002"; in
-stdenv.mkDerivation {
-  name = "gnubg-"+version;
+stdenv.mkDerivation rec {
+  pname = "gnubg";
+  version = "1.06.002";
 
   src = fetchurl {
     url = "http://gnubg.org/media/sources/gnubg-release-${version}-sources.tar.gz";
diff --git a/pkgs/games/hhexen/default.nix b/pkgs/games/hhexen/default.nix
index 0306c54ef4ee..19a0b783efdd 100644
--- a/pkgs/games/hhexen/default.nix
+++ b/pkgs/games/hhexen/default.nix
@@ -1,7 +1,7 @@
 { lib, fetchurl, SDL, stdenv }:
 
 stdenv.mkDerivation rec {
-  name = "hhexen";
+  pname = "hhexen";
   version = "1.6.3";
   src = fetchurl {
     url = "mirror://sourceforge/hhexen/hhexen-${version}-src.tgz";
diff --git a/pkgs/games/instead/default.nix b/pkgs/games/instead/default.nix
index 5c35219c19bf..cafdd2b84f0d 100644
--- a/pkgs/games/instead/default.nix
+++ b/pkgs/games/instead/default.nix
@@ -1,8 +1,6 @@
 { lib, stdenv, fetchurl, SDL2, SDL2_ttf, SDL2_image, SDL2_mixer, pkg-config, lua, zlib, unzip }:
 
 let
-  version = "3.3.2";
-
   # I took several games at random from https://instead.syscall.ru/games/
   games = [
     (fetchurl {
@@ -28,8 +26,9 @@ let
   ];
 in
 
-stdenv.mkDerivation {
-  name = "instead-" + version;
+stdenv.mkDerivation rec {
+  pname = "instead";
+  version = "3.3.2";
 
   src = fetchurl {
     url = "mirror://sourceforge/project/instead/instead/${version}/instead_${version}.tar.gz";
diff --git a/pkgs/games/moon-buggy/default.nix b/pkgs/games/moon-buggy/default.nix
index b623d7bd5396..12eb6b24a806 100644
--- a/pkgs/games/moon-buggy/default.nix
+++ b/pkgs/games/moon-buggy/default.nix
@@ -1,16 +1,15 @@
 {lib, stdenv, fetchurl, ncurses}:
 
 stdenv.mkDerivation rec {
-  baseName = "moon-buggy";
+  pname = "moon-buggy";
   version = "1.0.51";
-  name = "${baseName}-${version}";
 
   buildInputs = [
     ncurses
   ];
 
   src = fetchurl {
-    url = "http://m.seehuhn.de/programs/${name}.tar.gz";
+    url = "http://m.seehuhn.de/programs/moon-buggy-${version}.tar.gz";
     sha256 = "0gyjwlpx0sd728dwwi7pwks4zfdy9rm1w1xbhwg6zip4r9nc2b9m";
   };
 
diff --git a/pkgs/games/nethack/default.nix b/pkgs/games/nethack/default.nix
index f9939f063c80..2b29bddad93c 100644
--- a/pkgs/games/nethack/default.nix
+++ b/pkgs/games/nethack/default.nix
@@ -20,9 +20,9 @@ let
 
 in stdenv.mkDerivation rec {
   version = "3.6.6";
-  name = if x11Mode then "nethack-x11-${version}"
-         else if qtMode then "nethack-qt-${version}"
-         else "nethack-${version}";
+  pname = if x11Mode then "nethack-x11"
+         else if qtMode then "nethack-qt"
+         else "nethack";
 
   src = fetchurl {
     url = "https://nethack.org/download/${version}/nethack-${lib.replaceStrings ["."] [""] version}-src.tgz";
diff --git a/pkgs/games/planetaryannihilation/default.nix b/pkgs/games/planetaryannihilation/default.nix
index c29af6d810f5..2debd15f814e 100644
--- a/pkgs/games/planetaryannihilation/default.nix
+++ b/pkgs/games/planetaryannihilation/default.nix
@@ -1,26 +1,15 @@
 { lib, stdenv, config, fetchurl, patchelf, makeWrapper, gtk2, glib, udev, alsa-lib, atk
-, nspr, fontconfig, cairo, pango, nss, freetype, gnome2, gdk-pixbuf, curl, systemd, xorg }:
+, nspr, fontconfig, cairo, pango, nss, freetype, gnome2, gdk-pixbuf, curl, systemd, xorg, requireFile }:
 
-# TODO: use dynamic attributes once Nix 1.7 is out
-assert ((config.planetary_annihilation or null).url or null) != null;
-assert ((config.planetary_annihilation or null).sha256 or null) != null;
+stdenv.mkDerivation rec {
+  pname = "planetary-annihalation";
+  version = "62857";
 
-/* to setup:
- $ cat ~/.config/nixpkgs/config.nix
- {
-  planetary_annihilation = {
-    url = "file:///home/user/PA_Linux_62857.tar.bz2";
+  src = requireFile {
+    message = "This file has to be downloaded manually via nix-prefetch-url.";
+    name = "PA_Linux_${version}.tar.bz2";
     sha256 = "0imi3k5144dsn3ka9khx3dj76klkw46ga7m6rddqjk4yslwabh3k";
   };
-}
-*/
-
-stdenv.mkDerivation {
-  name = "planetary-annihalation";
-
-  src = fetchurl {
-    inherit (config.planetary_annihilation) url sha256;
-  };
 
   nativeBuildInputs = [ patchelf makeWrapper ];
 
diff --git a/pkgs/games/xconq/default.nix b/pkgs/games/xconq/default.nix
index 8f4366fbcb87..10a959a676b4 100644
--- a/pkgs/games/xconq/default.nix
+++ b/pkgs/games/xconq/default.nix
@@ -2,12 +2,11 @@
 , libXext, fontconfig, makeWrapper }:
 
 stdenv.mkDerivation rec {
-  name = "${baseName}-${version}";
-  baseName = "xconq";
+  pname = "xconq";
   version = "7.5.0-0pre.0.20050612";
 
   src = fetchurl {
-    url = "mirror://sourceforge/project/${baseName}/${baseName}/${name}/${name}.tar.gz";
+    url = "mirror://sourceforge/project/xconq/xconq/xconq-${version}/xconq-${version}.tar.gz";
     sha256 = "1za78yx57mgwcmmi33wx3533yz1x093dnqis8q2qmqivxav51lca";
   };