diff --git a/nixos/configuration.nix b/nixos/configuration.nix
index 77b27b1..2813df4 100644
--- a/nixos/configuration.nix
+++ b/nixos/configuration.nix
@@ -100,6 +100,9 @@
 
   # List packages installed in system profile. To search, run:
   # $ nix search wget
+  nixpkgs.config.allowUnfreePredicate = pkg: builtins.elem (lib.getName pkg) [
+    "dwarf-fortress"
+  ];
   environment.systemPackages = with pkgs; [
     neovim 
     wget