You can absolutely survive and even thrive in Germany without knowing much German, especially in major cities like Berlin, Munich, Frankfurt, and Hamburg. In these urban hubs, English is widely spoken, particularly among the younger generation, in the service industry, and at major tourist attractions. Most signage in airports and main train stations is bilingual, and digital tools like Google Maps and DeepL make navigating public transport and translating menus incredibly easy. However, "survival" becomes more challenging in smaller towns or rural areas in the former East, where English proficiency may be lower. While you can get by for a holiday or a short-term move, knowing even basic German ("B1" level) is essential for long-term integration, such as dealing with government bureaucracy (the Ausländerbehörde), signing a rental contract, or making local friends. Germans generally appreciate it when you try to use basic greetings like "Guten Tag" or "Danke," even if the rest of the conversation switches to English. Ultimately, while language isn't a barrier for a tourist, it is the "key" to truly understanding the culture if you plan on living there for an extended period.