Daiva Story 6: Nirsartia no Gyokuza

The game starts out on a map screen which shows where the player's homebase is located, as well as the other planets and their available resources. The resources are used to add more spaceships to the player's fleet.

While flying around, enemy spaceships will sometimes be spotted. The player can ignore them or choose to engage in a turn-based battle with them. During the battle, players choose where to place their fleet on a square grid map. The player's fleet and the enemy fleet take turns volleying shots at each other. The victor of the battle is whoever still has remaining spaceships in their fleet.

Players must be careful not to lose control of the planets they have claimed, as enemy spaceships will attack them and must be defeated in order to maintain ownership.

Before taking control of a planet, the player lands on its surface and enters into a side-scrolling action game in a mobile attack suit. The player is shown the enemy and gravity bars, which affect how tough and plentiful the enemies are, as well as how high they can jump. The player can also choose where to deploy special items, such as multiple missile strikes, a bomb to destroy all enemies, or an item to refill their shield.

Players must then shoot or avoid hostile enemies while fighting a boss enemy to fully take control of the planet.

The game offers four different difficulty modes to challenge players.