1. Introduction to Dota 2 in Japan
Dota 2 is a popular multiplayer online battle arena (MOBA) game played by millions of players worldwide. The game was developed by Valve Corporation and was released in 2013. Since then, it has gained immense popularity and has a dedicated fan base in Japan. In this article, we will discuss the use of English in Dota 2's Japanese servers.

2. English as a Second Language
In Japan, English is considered a second language, and most Japanese people learn it during their school years. However, not all Japanese players are fluent in English, and some struggle with the language barrier in Dota 2. This can sometimes lead to communication issues among team members and affect the overall gameplay experience.

3. Communication in Dota 2
Communication is crucial in Dota 2, and players must communicate effectively to win matches. In Japan, players often use a combination of Japanese and English to communicate. However, this can lead to confusion, especially for non-Japanese speaking players. Fortunately, Dota 2 has built-in communication tools, such as pinging and hotkey messages, which eliminate the need for verbal communication.

4. Japanese Localization in Dota 2
Valve Corporation has made an effort to make Dota 2 accessible for Japanese players by localizing the game in Japanese. This localization includes a Japanese user interface, subtitles, and voice acting. The localization allows Japanese players to understand the game better and enjoy it without any language barriers.

5. English-only parties
Despite the localization efforts, some Japanese players prefer to use English only while playing Dota 2. These so-called "English-only parties" are a group of players who exclusively communicate in English during matches. This can be frustrating for non-English speaking players, but it is understandable as English is considered the universal language of gaming.

6. Conclusion
In conclusion, Dota 2's Japanese servers offer a unique gaming experience that involves different languages and cultures. While the language barrier may be an issue for some players, the built-in communication tools and localization efforts have made the game more accessible for everyone. Regardless of the language used, Dota 2 remains a thrilling and engaging game that has captured the hearts of millions of players worldwide.