diff --git a/nixos/packages.nix b/nixos/packages.nix
index cd2afb5..ac388b9 100644
--- a/nixos/packages.nix
+++ b/nixos/packages.nix
@@ -35,14 +35,15 @@
 		prismlauncher                                            # Free, open source launcher for Minecraft
 		(retroarch.override {                                    # Multi-platform emulator frontend for libretro cores
 			cores = with libretro; [
+				blastem                                           # Sega Genesis
 				dosbox                                           	# MS-DOS
 				easyrpg                                          	# RPG Maker 2000/2003
-				mame                                                # Arcade
+				mame                                            	# Arcade
 				melonds                                          	# Nintendo DS
-				mgba                                                # Game Boy Advance
-				pcsx2                                               # PlayStation 2
+				mesen
+				pcsx2                                           	# PlayStation 2
 				ppsspp                                           	# PlayStation Portable
-				snes9x                                              # Super Nintendo Entertainment System
+				snes9x                                            # Super Nintendo Entertainment System
 				yabause                                          	# Sega Saturn
 			];
 		})