Chaos Domain is a 2.5-dimensional side-scrolling shoot-em-up game developed by Holy Warp. Black Wing Foundation.
Set in a distant future, where humankind mastered the interplanetary travel, a Chaos cult is created. These cultists raid other spaceships, brainwash the passengers and go on. The main character sets out to kill all the cultists.
The developers say that there is not much plot present in the game and want the player to think they are saving a princess. Although, that is what you are doing.
Chaos Domain is heavily influenced by the old side-scrolling games of the Sega Mega Drive era like Contra. The main objective of the game's levels is either to get to its end or beat a boss. There are 30 levels present in the game. The players have to complete their objective in a limited amount of time getting the most points possible.
The game features a weapon upgrade and ability systems. The players can purchase abilities and weapons in an in-game store using the points they got awarded after playing a level.
The game also features a single-screen multiplayer. At any point of the game, a second player can join in. There is no online multiplayer present in the game.
The game's art style is a mix between the Ancient Egypt mythology and cyberpunk. The music is also influenced by this mix.