diff --git a/nixos/tests/armagetronad.nix b/nixos/tests/armagetronad.nix
index ca93ce8fb6c5..b657893fc9ee 100644
--- a/nixos/tests/armagetronad.nix
+++ b/nixos/tests/armagetronad.nix
@@ -13,7 +13,7 @@ let
 
     { imports = [ ./common/user-account.nix ./common/x11.nix ];
       hardware.graphics.enable = true;
-      virtualisation.memorySize = 256;
+      virtualisation.memorySize = 384;
       environment = {
         systemPackages = [ pkgs.armagetronad ];
         variables.XAUTHORITY = "/home/${user}/.Xauthority";
@@ -208,7 +208,7 @@ makeTest {
         barrier.wait()
 
       # Get to the Server Bookmarks screen on both clients. This takes a while so do it asynchronously.
-      barrier = threading.Barrier(3, timeout=120)
+      barrier = threading.Barrier(len(clients) + 1, timeout=240)
       for client in clients:
         threading.Thread(target=client_setup, args=(client, servers, barrier)).start()
       barrier.wait()
diff --git a/pkgs/games/armagetronad/default.nix b/pkgs/games/armagetronad/default.nix
index d4bfba671d65..1db364ce6fc8 100644
--- a/pkgs/games/armagetronad/default.nix
+++ b/pkgs/games/armagetronad/default.nix
@@ -22,6 +22,8 @@
 , libxml2
 , protobuf
 , xvfb-run
+, gnugrep
+, nixosTests
 , dedicatedServer ? false
 }:
 
@@ -54,22 +56,21 @@ let
     # https://gitlab.com/armagetronad/armagetronad/-/commits/trunk/?ref_type=heads
     ${unstableVersionMajor} =
       let
-        rev = "e7f41fd26363e7c6a72f0c673470ed06ab54ae08";
-        hash = "sha256-Uxxk6L7WPxKYQ4CNxWwEtvbZjK8BqYNTuwwdleZ44Ro=";
+        rev = "391a74625c1222dd180f069f1b61c3e069a3ba8c";
+        hash = "sha256-fUY0dBj85k0QhnAoDzyBmmKmRh9oCYC6r6X4ukt7/L0=";
       in dedicatedServer: {
         version = "${unstableVersionMajor}-${builtins.substring 0 8 rev}";
         src = fetchArmagetron rev hash;
         extraBuildInputs = [ protobuf boost ]
           ++ lib.optionals (!dedicatedServer) [ glew ftgl freetype SDL2 SDL2_image SDL2_mixer ];
         extraNativeBuildInputs = [ bison ];
-        extraNativeInstallCheckInputs = lib.optionals (!dedicatedServer) [ xvfb-run ];
       };
 
     # https://gitlab.com/armagetronad/armagetronad/-/commits/hack-0.2.8-sty+ct+ap/?ref_type=heads
     "${latestVersionMajor}-sty+ct+ap" =
       let
-        rev = "a5bffe9dda2b43d330433f76f14eb374701f326a";
-        hash = "sha256-cNABxfg3MSmbxU/R78QyPOMwXGqJEamaFOPNw5yhDGE=";
+        rev = "5a17cc9fb6e1e27a358711afbd745ae54d4a8c60";
+        hash = "sha256-111C1j/hSaASGcvYy3//TyHs4Z+3fuiOvCmtcWLdFd4=";
       in dedicatedServer: {
         version = "${latestVersionMajor}-sty+ct+ap-${builtins.substring 0 8 rev}";
         src = fetchArmagetron rev hash;
@@ -130,13 +131,15 @@ let
       ] ++ lib.optional dedicatedServer "--enable-dedicated"
         ++ lib.optional (!dedicatedServer) "--enable-music";
 
-      buildInputs = [ libxml2 ]
+      buildInputs = lib.singleton (libxml2.override { enableHttp = true; })
         ++ (resolvedParams.extraBuildInputs or []);
 
       nativeBuildInputs = [ autoconf automake gnum4 pkg-config which python3 ]
         ++ (resolvedParams.extraNativeBuildInputs or []);
 
-      nativeInstallCheckInputs = resolvedParams.extraNativeInstallCheckInputs or [];
+      nativeInstallCheckInputs = [ gnugrep ]
+        ++ lib.optional (!dedicatedServer) xvfb-run
+        ++ (resolvedParams.extraNativeInstallCheckInputs or []);
 
       postInstall = lib.optionalString (!dedicatedServer) ''
         mkdir -p $out/share/{applications,icons/hicolor}
@@ -154,18 +157,21 @@ let
         else
           run="$bin"
         fi
+        echo "Checking game info:" >&2
         version="$($run --version || true)"
+        echo "  - Version: $version" >&2
         prefix="$($run --prefix || true)"
-        rubber="$($run --doc | grep -m1 CYCLE_RUBBER)"
-
-        echo "Version: $version" >&2
-        echo "Prefix: $prefix" >&2
-        echo "Docstring: $rubber" >&2
+        echo "  - Prefix: $prefix" >&2
+        rubber="$(($run --doc || true) | grep -m1 CYCLE_RUBBER)"
+        echo "  - Docstring: $rubber" >&2
 
         if [[ "$version" != *"${resolvedParams.version}"* ]] || \
            [ "$prefix" != "$out" ] || \
            [[ ! "$rubber" =~ ^CYCLE_RUBBER[[:space:]]+Niceness[[:space:]]factor ]]; then
+          echo "Something didn't match. :-(" >&2
           exit 1
+        else
+          echo "Everything is ok." >&2
         fi
       '';
 
@@ -186,6 +192,7 @@ let
           {
             # Allow both a "dedicated" passthru and a passthru for all the options other than the latest version, which this is.
             dedicated = mkArmagetron fn true;
+            tests.armagetronad = nixosTests.armagetronad;
           };
 
       meta = with lib; {