diff --git a/nixos/modules/services/games/factorio.nix b/nixos/modules/services/games/factorio.nix
index 73099ae3363..a1aa5739d06 100644
--- a/nixos/modules/services/games/factorio.nix
+++ b/nixos/modules/services/games/factorio.nix
@@ -36,6 +36,7 @@ let
     only_admins_can_pause_the_game = true;
     autosave_only_on_server = true;
     admins = [];
+    non_blocking_saving = cfg.nonBlockingSaving;
   } // cfg.extraSettings;
   serverSettingsFile = pkgs.writeText "server-settings.json" (builtins.toJSON (filterAttrsRecursive (n: v: v != null) serverSettings));
   modDir = pkgs.factorio-utils.mkModDirDrv cfg.mods;
@@ -193,6 +194,15 @@ in
           Autosave interval in minutes.
         '';
       };
+      nonBlockingSaving = mkOption {
+        type = types.bool;
+        default = false;
+        description = ''
+          Highly experimental feature, enable only at your own risk of losing your saves.
+          On UNIX systems, server will fork itself to create an autosave.
+          Autosaving on connected Windows clients will be disabled regardless of autosave_only_on_server option.
+        '';
+      };
     };
   };
 
diff --git a/pkgs/games/factorio/versions.json b/pkgs/games/factorio/versions.json
index b38069355ee..1f8b2010226 100644
--- a/pkgs/games/factorio/versions.json
+++ b/pkgs/games/factorio/versions.json
@@ -10,12 +10,12 @@
         "version": "1.1.27"
       },
       "stable": {
-        "name": "factorio_alpha_x64-1.1.26.tar.xz",
+        "name": "factorio_alpha_x64-1.1.27.tar.xz",
         "needsAuth": true,
-        "sha256": "0wv1yv5v77h09nk2skfabqmxys40d806x09kac3jja1lhhr4hzl2",
+        "sha256": "0s8qnr2p819r4pjby71jp5in679yvsz235iy1csmjjm2d2q6igln",
         "tarDirectory": "x64",
-        "url": "https://factorio.com/get-download/1.1.26/alpha/linux64",
-        "version": "1.1.26"
+        "url": "https://factorio.com/get-download/1.1.27/alpha/linux64",
+        "version": "1.1.27"
       }
     },
     "demo": {
@@ -28,12 +28,12 @@
         "version": "1.1.27"
       },
       "stable": {
-        "name": "factorio_demo_x64-1.1.26.tar.xz",
+        "name": "factorio_demo_x64-1.1.27.tar.xz",
         "needsAuth": false,
-        "sha256": "1b6rjyhjvdhdb0d3drjpjc1v8398amcz8wmh3d84gl3aafflfl1x",
+        "sha256": "0cgnv6w8bxxskf0gxqcg9hq0zl4idnwh5d61b0510axah1m6i57z",
         "tarDirectory": "x64",
-        "url": "https://factorio.com/get-download/1.1.26/demo/linux64",
-        "version": "1.1.26"
+        "url": "https://factorio.com/get-download/1.1.27/demo/linux64",
+        "version": "1.1.27"
       }
     },
     "headless": {
@@ -46,12 +46,12 @@
         "version": "1.1.27"
       },
       "stable": {
-        "name": "factorio_headless_x64-1.1.26.tar.xz",
+        "name": "factorio_headless_x64-1.1.27.tar.xz",
         "needsAuth": false,
-        "sha256": "08hnyycwsj6srp2kcvnh5rixlcifk17r2814fr1g7jbdx7rp14mj",
+        "sha256": "08bny927jiph0zj101yx2wirm16194sap3ifk9rs582s506i1p2w",
         "tarDirectory": "x64",
-        "url": "https://factorio.com/get-download/1.1.26/headless/linux64",
-        "version": "1.1.26"
+        "url": "https://factorio.com/get-download/1.1.27/headless/linux64",
+        "version": "1.1.27"
       }
     }
   }