diff --git a/nixos/modules/services/games/factorio.nix b/nixos/modules/services/games/factorio.nix
index 10f3daea69e4..90834c5b2605 100644
--- a/nixos/modules/services/games/factorio.nix
+++ b/nixos/modules/services/games/factorio.nix
@@ -78,7 +78,7 @@ in
           test -e ${stateDir}/saves/${cfg.saveName}.zip || \
             ${pkgs.factorio-headless}/bin/factorio         \
               --config=${cfg.configFile}                   \
-              --create=${cfg.saveName}
+              --create=${stateDir}/saves/${cfg.saveName}.zip
       '';
 
       serviceConfig = {
@@ -93,7 +93,7 @@ in
           "${pkgs.factorio-headless}/bin/factorio"
           "--config=${cfg.configFile}"
           "--port=${toString cfg.port}"
-          "--start-server=${cfg.saveName}"
+          "--start-server=${stateDir}/saves/${cfg.saveName}.zip"
         ];
       };
     };
diff --git a/pkgs/games/factorio/default.nix b/pkgs/games/factorio/default.nix
index 1447fed2a82e..cb04e9c47501 100644
--- a/pkgs/games/factorio/default.nix
+++ b/pkgs/games/factorio/default.nix
@@ -8,7 +8,7 @@ assert releaseType == "alpha" || releaseType == "headless";
 
 with stdenv.lib;
 let
-  version = "0.12.35";
+  version = "0.13.8";
   isHeadless = releaseType == "headless";
 
   arch = if stdenv.system == "x86_64-linux" then {
@@ -25,12 +25,12 @@ let
     url = "https://www.factorio.com/get-download/${version}/${releaseType}/${arch.inUrl}";
     name = "factorio_${releaseType}_${arch.inTar}-${version}.tar.gz"; # TODO take this from 302 redirection somehow? fetchurl doesn't help.
     x64 = {
-      headless = fetchurl        { inherit name url; sha256 = "1pdfd6qpzdzxsz1pvf1qasw5p6mzidi2q5d5m8x0gqyxaqdg175b"; };
-      alpha = authenticatedFetch { inherit      url; sha256 = "1r2q5hvx8248vfl7jg9jr0sk9kxhh5lg4qlv828j44dmgsxyhn1y"; };
+      headless = fetchurl        { inherit name url; sha256 = "0dliympqnnawfw65n5gnda9mljyqwshmq2hvplf1h8nrp1rw3pgj"; };
+      alpha = authenticatedFetch { inherit      url; sha256 = "12safa8b4g5cpwxbkf8ldkb17lgf33rslr7p81l7gr1lyzfnf82c"; };
     };
     i386 = {
       headless = abort "Factorio 32-bit headless binaries are not available for download.";
-      alpha = authenticatedFetch { inherit      url; sha256 = "1f3hl6m59zvmjrph0kj7fh1axdahgan1v5v3y4rdc6idamvr7rrf"; };
+      alpha = authenticatedFetch { inherit      url; sha256 = "0m4m183avnqxkw28vb7za14dsmcd01sdldgga0br1clilxmgph2w"; };
     };
   };