Lighthouse

Most of the game takes place in the Lighthouse of the World, aka the dungeon. Your job is to make your way up to the top floor, battling Monsters and discovering Items as you go.

Game Play
You begin on a floor a certain distance away from the stairs, and take one step at a time, confronting obstacles as they come. The idea is to live long enough to get to the stairs, at which point you can choose to either return to town (keeping all gold/items you've accumulated so far) or go forward to the next floor. If you die before you make it there, you lose all gold/items accumulated this trip. Generally you can expect to make multiple trips to the same floors until you're strong enough to pass.

In the upper-left portion of the screen is an indicator that tells you what floor you're on (F1 = Floor 1), and how many steps you are from the stairs (15m = 15 steps). You'll generally run into something (enemy, booby-trapped chest, trapped door, etc.) every 4-5 steps.

Game play happens automatically, for the most part. You have a choice between "Semi auto" (you make decisions manually such as whether or not to open chests or fight enemies) or "Full auto" (which will automatically attack/open everything, as well as automatically heal party members).

Healing of Blood
If one of your party members gets low on health, you can tap on their picture to use one of your remaining Healing of Blood (indicated in the blood drop icon in the upper left) to restore some of their health. You are limited in the number of times you can do this, and how much HP is restored each time. Returning to town and telling the Knights Base about new items you've discovered while dungeon-crawling will grant you Medals which you can turn in for improved Healing of Blood.

Floor Structure
There are 77 floors in total. Every 3 floors for the first 30 floors (4, 7, 10, 13...), you reach a "Shortcut" which allows you to start from that floor on your next trip and also earns you a new Knight for your party. From floors 31 to 66, you reach a shortcut every 4 floors. You unlock your last two shortcuts at floor level 71 and 76. On the floor just before a Shortcut (3, 6, 9, 12...), there's a tough boss battle.

This means you need to pay careful attention to which floor you're on, and the overall status of your party's health. If you're on floor 2 and out of Healing of Blood, you should return to town, rather than go on to floor 3 (boss battle).