Lords of Thunder is set in the once peaceful land of Mistral, where legend holds of a brave knight named Drak who has sealed an evil god named Deoric beneath the six continents of the land. However, peace never lasts. The Garuda Empire has invaded the lands of Mistral, and the six Dark Generals, led by Sornbul, have conquered the continents.
The player takes on the role of Duran, descendant of Drak, who is the only one who can stop the Garuda Empire's mad plan. With the power of Drak's mystic armors, Duran heads off to stop Sornbul at any cost. The six continents of Mistral can be challenged in any order, each filled with hordes of demons and one of Sornbul's Dark Generals.
The gameplay involves challenging these continents, with the option to choose from one of four elemental armors before each level. Each armor has its own bullet spread and unique bomb, which can be powered up by finding jewels dropped by enemies. The player must also manage their power level and armor health, as it is reduced when hit. Enemies drop crystals that can be used in a between-level shop to buy additional health, bombs, and continues.
Lords of Thunder was released for the Sega Mega CD in 1995, offering a challenging shoot'em up experience for fans of the genre.