Games are effective language learning tools that motivate students and reduce stress. They allow students to practice language skills in a low-pressure environment where they are focused on the game rather than grammar mistakes. Some benefits of games include increasing student participation, improving fluency as students communicate without stressing about errors, and providing opportunities for real-world language practice. The document provides examples of vocabulary, grammar, and other games that integrate language skills like speaking, reading, and listening in a fun, engaging way for students.