Astrea: Six-Sided Oracles frames its struggle as a journey through a corrupted star system. Descendants of the Six-Sided Oracles take up the battle their predecessors could not finish, using the power of their star to confront the spreading corruption. That cosmic premise feeds into a strategy roguelike built around choices with consequences, rather than a conventional card deck.
The defining twist is a dice pool and a dual system of Purification and Corruption. Purification can harm enemies or heal the player, while Corruption can hurt the player or restore enemies; accepting Corruption can also activate skills attached to the health bar, though too much can consume the Oracle. Players customize die faces and choose among dice types with different risk profiles. Enemies roll their own dice, which players can manipulate to change enemy intent. Six Oracles, each with distinct dice sets and abilities, further shape the available playstyles.
Runs also draw on random events, upgradeable support Sentinels, and blessings that can alter tactics, while adjustable difficulty offers ways to tailor the challenge. Its central appeal is the push and pull between controlling risk, changing dice outcomes, and deciding when corruption is worth the cost.