Video gaming has been rising rapidly to become one of the primary entertainment media, especially during the COVID-19 pandemic. Playing video games has been reported to associate with many psychological and behavioral traits. However, little is known about the connections between game players' behaviors in the virtual environment and environmental perceptions. Thus, the current data set offers valuable resources regarding environmental worldviews and behaviors in the virtual world of 640 Animal Crossing: New Horizons (ACNH) game players from 29 countries around the globe. The data set consists of six major categories: 1) socio-demographic profile, 2) COVID-19 concern, 3) environmental perception, 4) game-playing habit, 5) in-game behavior, and 6) game-playing feeling. By making this data set open, we aim to provide policymakers, game producers, and researchers with valuable resources for understanding the interactions between behaviors in the virtual world and environmental perceptions, which could help produce video games in compliance with the United Nations (UN) Sustainable Development Goals.

Science, technology, engineering, and mathematics (STEM) education has become a critical factor in promoting sustainable development. Meanwhile, book reading is still an essential method for cognitive development and knowledge acquisition. In developing countries where STEM teaching and learning resources are limited, book reading is an important educational tool to promote STEM. Nevertheless, public data sets about STEM education and book reading behaviors in emerging countries are scarce. This article, therefore, aims to present a data set of 4,966 secondary school students from a school-based data collection in Vietnam. The data set comprises of five major categories: 1) students' personal information (including STEM performance), 2) family-related information, 3) book reading preferences, 4) book reading frequency/habits, and 5) classroom activities. By introducing the designing principles, the data collection method, and the variables in the data set, we aim to provide researchers, policymakers, and educators with well-validated resources and guidelines to conduct low-cost research, pedagogical programs in emerging countries.