diff --git a/src/lang/english_US.txt b/src/lang/english_US.txt
--- a/src/lang/english_US.txt
+++ b/src/lang/english_US.txt
@@ -4731,3 +4731,11 @@ STR_PLANE                               
 STR_SHIP                                                        :{BLACK}{SHIP}
 
 STR_TOOLBAR_RAILTYPE_VELOCITY                                   :{STRING} ({VELOCITY})
+STR_BASEGRAPHICS_DOS_DESCRIPTION                                :Original Transport Tycoon Deluxe DOS edition graphics.
+STR_BASEGRAPHICS_DOS_DE_DESCRIPTION                             :Original Transport Tycoon Deluxe DOS (German) edition graphics.
+STR_BASEGRAPHICS_WIN_DESCRIPTION                                :Original Transport Tycoon Deluxe Windows edition graphics.
+STR_BASESOUNDS_DOS_DESCRIPTION                                  :Original Transport Tycoon Deluxe DOS edition sounds.
+STR_BASESOUNDS_WIN_DESCRIPTION                                  :Original Transport Tycoon Deluxe Windows edition sounds.
+STR_BASESOUNDS_NONE_DESCRIPTION                                 :A sound pack without any sounds.
+STR_BASEMUSIC_WIN_DESCRIPTION                                   :Original Transport Tycoon Deluxe Windows edition music.
+STR_BASEMUSIC_NONE_DESCRIPTION                                  :A music pack without actual music.