Ruhrfestspielhaus is just one of the places to see in Westviertel, so why not enjoy the other things to explore during your travels? You can attend a football match while in the area.
You can spend time exploring the galleries in LWL Industrial Museum & Henrichenburg Boat Lift in Oberwiese. While you're in the area, wander around the parks.
You can spend time exploring the galleries in Henrichenburg Boat Lift during your travels in Oberwiese. While you're here, you can savour the lively bars.