Saving your progress in Dragon Quest VIII is vital to avoid losing hours of gameplay. Unlike many modern RPGs, Dragon Quest VIII does not feature an auto-save function. You must manually save your game at specific locations: churches. You will find churches in almost every major town and some smaller settlements. Look for the distinctive steeple and cross icon on your map.
To save, simply enter a church and speak to the priest or nun behind the altar. They will offer you several services, including 'Confess your sins' (which is the save option) and 'Resurrect a fallen comrade'. Always save your game before entering a new dungeon, facing a boss, or after making significant progress. It's also a good habit to save frequently, especially if you're about to explore a dangerous area or are low on health and MP. Dying in Dragon Quest VIII results in losing half your gold and being returned to the last church you saved at, so regular saving is your best defense against frustration.