diff --git a/modules/steam/custom.mustache b/modules/steam/custom.mustache
new file mode 100644
index 000000000..8747377e0
--- /dev/null
+++ b/modules/steam/custom.mustache
@@ -0,0 +1,80 @@
+:root {
+  /* The main accent color and the matching text value */
+  --adw-accent-bg-rbg: {{base0D-rgb-r}}, {{base0D-rgb-g}}, {{base0D-rgb-b}};
+  --adw-accent-fg-rbg: {{base00-rgb-r}}, {{base00-rgb-g}}, {{base00-rgb-b}};
+  --adw-accent-rgb: {{base0D-rgb-r}}, {{base0D-rgb-g}}, {{base0D-rgb-b}};
+
+  /* destructive-action buttons */
+  --adw-destructive-bg-rgb: {{base08-rgb-r}}, {{base08-rgb-g}}, {{base08-rgb-b}};
+  --adw-destructive-fg-rgb: {{base00-rgb-r}}, {{base00-rgb-g}}, {{base00-rgb-b}};
+  --adw-destructive-rgb: {{base08-rgb-r}}, {{base08-rgb-g}}, {{base08-rgb-b}};
+
+  /* Levelbars, entries, labels and infobars. These don't need text colors */
+  --adw-success-bg-rgb: {{base0B-rgb-r}}, {{base0B-rgb-g}}, {{base0B-rgb-b}};
+  --adw-success-fg-rgb: {{base00-rgb-r}}, {{base00-rgb-g}}, {{base00-rgb-b}};
+  --adw-success-rgb: {{base0B-rgb-r}}, {{base0B-rgb-g}}, {{base0B-rgb-b}};
+
+  --adw-warning-bg-rgb: {{base0E-rgb-r}}, {{base0E-rgb-g}}, {{base0E-rgb-b}};
+  --adw-warning-fg-rgb: {{base00-rgb-r}}, {{base00-rgb-g}}, {{base00-rgb-b}};
+  --adw-warning-fg-a: 0.8;
+  --adw-warning-rgb: {{base0E-rgb-r}}, {{base0E-rgb-g}}, {{base0E-rgb-b}};
+
+  --adw-error-bg-rgb: {{base08-rgb-r}}, {{base08-rgb-g}}, {{base08-rgb-b}};
+  --adw-error-fg-rgb: {{base00-rgb-r}}, {{base00-rgb-g}}, {{base00-rgb-b}};
+  --adw-error-rgb: {{base08-rgb-r}}, {{base08-rgb-g}}, {{base08-rgb-b}};
+
+  /* Window */
+  --adw-window-bg-rgb: {{base00-rgb-r}}, {{base00-rgb-g}}, {{base00-rgb-b}};
+  --adw-window-fg-rgb: {{base05-rgb-r}}, {{base05-rgb-g}}, {{base05-rgb-b}};
+
+  /* Views - e.g. text view or tree view */
+  --adw-view-bg-rgb: {{base00-rgb-r}}, {{base00-rgb-g}}, {{base00-rgb-b}};
+  --adw-view-fg-rgb: {{base05-rgb-r}}, {{base05-rgb-g}}, {{base05-rgb-b}};
+
+  /* Header bar, search bar, tab bar */
+  --adw-headerbar-bg-rgb: {{base01-rgb-r}}, {{base01-rgb-g}}, {{base01-rgb-b}};
+  --adw-headerbar-fg-rgb: {{base05-rgb-r}}, {{base05-rgb-g}}, {{base05-rgb-b}};
+  --adw-headerbar-border-rgb: {{base01-rgb-r}}, {{base01-rgb-g}}, {{base01-rgb-b}};
+  --adw-headerbar-backdrop-rgb: {{base00-rgb-r}}, {{base00-rgb-g}}, {{base00-rgb-b}};
+  --adw-headerbar-shade-rgb: 0, 0, 0;
+  --adw-headerbar-shade-a: 0.9;
+
+  /* Split pane views */
+  --adw-sidebar-bg-rgb: {{base01-rgb-r}}, {{base01-rgb-g}}, {{base01-rgb-b}};
+  --adw-sidebar-fg-rgb: {{base05-rgb-r}}, {{base05-rgb-g}}, {{base05-rgb-b}};
+  --adw-sidebar-backdrop-rgb: {{base00-rgb-r}}, {{base00-rgb-g}}, {{base00-rgb-b}};
+  --adw-sidebar-shade-rgb: 0, 0, 0;
+  --adw-sidebar-shade-a: 0.36;
+
+  --adw-secondary-sidebar-bg-rgb: {{base01-rgb-r}}, {{base01-rgb-g}}, {{base01-rgb-b}};
+  --adw-secondary-sidebar-fg-rgb: {{base05-rgb-r}}, {{base05-rgb-g}}, {{base05-rgb-b}};
+  --adw-secondary-sidebar-backdrop-rgb: {{base00-rgb-r}}, {{base00-rgb-g}}, {{base00-rgb-b}};
+  --adw-secondary-sidebar-shade-rgb: 0, 0, 0;
+  --adw-secondary-sidebar-shade-a: 0.36;
+
+  /* Cards, boxed lists */
+  --adw-card-bg-rgb: 0, 0, 0;
+  --adw-card-bg-a: 0.08;
+  --adw-card-fg-rgb: {{base05-rgb-r}}, {{base05-rgb-g}}, {{base05-rgb-b}};
+  --adw-card-shade-rgb: 0, 0, 0;
+  --adw-card-shade-a: 0.36;
+
+  /* Dialogs */
+  --adw-dialog-bg-rgb: {{base01-rgb-r}}, {{base01-rgb-g}}, {{base01-rgb-b}};
+  --adw-dialog-fg-rgb: {{base05-rgb-r}}, {{base05-rgb-g}}, {{base05-rgb-b}};
+
+  /* Popovers */
+  --adw-popover-bg-rgb: {{base01-rgb-r}}, {{base01-rgb-g}}, {{base01-rgb-b}};
+  --adw-popover-fg-rgb: {{base05-rgb-r}}, {{base05-rgb-g}}, {{base05-rgb-b}};
+  --adw-popover-shade-rgb: {{base01-rgb-r}}, {{base01-rgb-g}}, {{base01-rgb-b}};
+  --adw-popover-shade-a: 0.36;
+
+  /* Thumbnails */
+  --adw-thumbnail-bg-rgb: {{base00-rgb-r}}, {{base00-rgb-g}}, {{base00-rgb-b}};
+  --adw-thumbnail-fg-rgb: {{base05-rgb-r}}, {{base05-rgb-g}}, {{base05-rgb-b}};
+
+  /* Miscellaneous */
+  --adw-shade-rgb: 0, 0, 0;
+  --adw-shade-a: 0.36;
+}
+
diff --git a/modules/steam/hm.nix b/modules/steam/hm.nix
new file mode 100644
index 000000000..92e2d7508
--- /dev/null
+++ b/modules/steam/hm.nix
@@ -0,0 +1,39 @@
+{ config, lib, pkgs, ... }:
+
+let
+  cfg = config.stylix.targets.steam;
+in {
+  options.stylix.targets.steam = {
+    enable = config.lib.stylix.mkEnableTarget "Steam" true;
+    adwaitaForSteam.enable = config.lib.stylix.mkEnableTarget "Adwaita for Steam" false;
+  };
+
+  config = lib.mkIf (config.stylix.enable && cfg.enable) (lib.mkMerge [
+    {
+      # Generic configuration
+    }
+
+    (lib.mkIf cfg.adwaitaForSteam.enable {
+      home.packages = with pkgs; [adwsteamgtk];
+
+      home.activation.adwaitaForSteam = let
+        shellScript = pkgs.writeShellScript "adwaitaForSteam" ''
+          rm -f "$HOME/.cache/AdwSteamInstaller/extracted/custom/custom.css"
+          ${lib.getExe pkgs.adwsteamgtk}  -i
+        '';
+      in
+        config.lib.dag.entryAfter ["writeBoundary" "dconfSettings"] ''
+          run --quiet ${shellScript}
+        '';
+
+      # Use custom.css
+      dconf.settings."io/github/Foldex/AdwSteamGtk".prefs-install-custom-css = true;
+
+      xdg.configFile."AdwSteamGtk/custom.css".source = config.lib.stylix.colors {
+        template = ./custom.mustache;
+        extension = "css";
+      };
+
+    })
+  ]);
+}