Each act you will have to choose between visiting the Port, The Fields and The Town. Each of these locations will have activities you can do to become a better hero, such as adding new cards, getting new gear or using training to improve your cards.
Once you have picked a location you get all the rewards there but lose access to the other areas until after nighttime, where you must fight!
Sentinel Point Heroes focuses on less fights but each one being highly important and tactical. You get a choice of crimes to tackle, each one with different modifiers that change the difficulty and the rewards.
You also have the option to visit the shop at any time, which will give you the chance to pick up cards from other Sources letting you build a unique deck, or to pick up a heal or vital training to help you tackle a difficult fight.