Highschool DxD is a visual novel from Kadokawa Games, based on the events of the first season of the anime.
The majority of the gameplay is simply the player choosing conversation choices. However, at the end of each character is a "Dressbreak" boss battle with turn based combat.
Famitsu gave the game a 28 (6/7/7/8) out of 40. Sales are unknown as the game failed to chart.