diff --git a/modules/games.nix b/modules/games.nix
index 21047cc..5248ea4 100644
--- a/modules/games.nix
+++ b/modules/games.nix
@@ -20,6 +20,8 @@
   #   https://unknown-horizons.org/ (A 2D realtime strategy simulation with an emphasis on economy and city building.)
   #   https://github.com/mgerdes/Open-Golf
 
+  # AMD GPU driver: See steam.nix
+
   allowUnfree = [
     "SpaceCadetPinball"
     "osu-lazer-bin"
diff --git a/modules/steam.nix b/modules/steam.nix
index 4e3109f..aa024e1 100644
--- a/modules/steam.nix
+++ b/modules/steam.nix
@@ -12,6 +12,11 @@
   #   https://www.reddit.com/r/NixOS/comments/10px9ty/comment/j6moarv/
   #hardware.steam-hardware.enable = true;
 
+  # AMD GPU driver.
+  #
+  # https://nixos.wiki/wiki/Steam#Changing_the_driver_on_AMD_GPUs
+  # According to this wiki, it can help to try out different drivers.
+
   # https://nixos.wiki/wiki/Steam#Install
   programs.steam = {
     enable = true;