A-Train is a simulation game where players assume the role of the head of a railroad company, tasked with creating a thriving mass transit system. The game allows players to establish a railroad empire by strategically scheduling passenger trains to meet high-demand times and transporting resources essential for urban development. Various city layouts and existing infrastructure present unique challenges and opportunities for business setup.

As cities grow, players witness the emergence of new businesses such as stadiums and office buildings, which further enhance passenger numbers for commuter trains. Additionally, players have the option to create their own businesses, influenced by local demographics, competition, and seasonal changes. A-Train combines strategic planning with city-building elements, offering an engaging experience for simulation enthusiasts.