Several researchers have highlighted the potential of applying adventure video games in second language acquisition; however, few studies have investigated the impact of adventure games on foreign language learning. This study aimed to examine the effects of a commercial adventure video game on foreign language learning and learners' perceptions toward this game. Twenty-two college students in Taiwan were asked to play an English adventure game "BONE." One group was allowed to take notes while playing and the other group was not. After playing, both groups were asked to take a vocabulary post-test. The results indicated that both groups picked up some new words after playing the adventure game, but there was no significant difference between the two groups' post-gaming performances. To better understand the strengths and weaknesses of using adventure games for foreign language learning, another study was conducted to explore 35 college students' perceptions toward this adventure game. The results showed that students considered the game helpful in improving their language skills and motivation. Students also reported they enjoyed playing the game because of the intriguing game design. The findings in this study suggest that adventure video games such as "BONE" can provide useful input to help college students enhance their English listening, reading, vocabulary skills and learning motivation. (Contains 8 tables and 1 figure.)