AG Subway Simulator Unlimited is a free train simulation game developed by Alpha Intl. IT Group for Android devices. The game offers a realistic train driving experience with its 6 different trains, including, R143, 81-760, 81-720, , and L1. Players can select their preferred train and route from 4 different routes available.

The game offers a comfortable train and route selector, and each train has its own individual design of cab and interior. The realistic train controller with 7 positions adds to the game's authenticity. The game also features a signal system and simulation of onboard train systems, adding to the realism of the game. Players can also adjust the graphics quality according to their device's specifications, with four levels of graphic quality available.

Overall, AG Subway Simulator Unlimited is a well-designed and fun train simulation game that offers a realistic experience for train enthusiasts. The game is easy to play, and the dynamic lighting makes it friendly for low-end devices.