Thunderground is a vintage maze video game for the Atari 2600 console, released in 1983. Developed by SEGA and published by Activision, it features gameplay where players control a tank-like vehicle navigating underground mazes to destroy enemy bases while avoiding mines and enemy fire. The game is reminiscent of the arcade game âDig Dugâ and is known for its early use of smooth scrolling in eight directions. The arcade-like experience provided by Thunderground made it quite popular among Atari enthusiasts of its time. Its genre can be classified as a maze shooter or action game.