Fortress City of Industria

**Fortress City of Industria** (インダストリア要塞都市) is the guild headquarters of Solo Players and home of the most famous solo player in YGGDRASIL Imperious.

## Background

Before Solo Players conquered this city-based dungeon, it had been a hostile city that was recommended for level 50+ players to beat in one attempt.

## Chronology

### The Undead King Arc

When YGGDRASIL was about to be shut down, Imperious decided to stay online in the game at the Fortress City of Industria until the very end.

## Layout & Features

Prior to Solo Players conquering this city, the Fortress City of Industria was a much smaller city of mostly industrial buildings with very few housing for citizens. After Solo Players conquered it, the city was completely reconstructed and was stretched to over a larger surface area with large sections for housing citizens for taxing. For faster traveling throughout the city, there are specific points in different section of the city, where gates open to allow magical transit. According to [[]], there are additional special teleport gates at specific cardinal locations which can teleport to any location in city except to the Palace of Solo Players.

Initially, the max data storage for making Custom NPCs was 700, but since the dungeon was won by Solo Players on its first try, they were granted additional data levels of 300. This setup allows the guild to make up a grand total of 1000 levels of Custom NPCs at most.

The characteristics of the human that spawn in Industria have resistance to all types of attack, which they gain from the armor they wear. The humans where balanced in both magical and physical power, and attacked with overwhelming number to drain magic casters and exhaust warriors. Industria is warded to block invisibility, flying and teleportation magic into or within itself except for a few specific areas. Additionally, there was a transportation trap system that could divide a party. That wasn’t the only trap, as there were many other types strung up all over the place. Traps that blind people and ones that poison the air, all for the sake of blocking the path of the adventurers.

All the enemies are comprised solely of humans in Industria, but it still is not easy to cope with them. Coupled with the the basic 6-man party configuration in YGGDRASIL, original monsters can be used and are one of the major factors of the invaders' crushing defeat. As well as elementals and angels appearing frequently, let alone Summoned Monsters. Summoned Monsters can be specifically chosen to be disadvantageous to the opponent. One can choose those with fatal special abilities. Naturally, the more restricted the area of the city invaders enter, the stronger the monsters that will appear.

On the other hand, repairing damage to the Fortress City of Industria requires the payment of a fee. However, one can repair a certain sum's worth of damage every day for no charge. In particular, the open areas of the city are designed to be particularly cheap given the fact that intruders often attempt to invade, so even repairing the entire section is not a great expense. In contrast, things in the cathedrals and colosseum are looked upon as quite expensive according to Imperious.

### Colosseum of Warriors

#### Colosseum Library

The Colosseum Library has information on warrior skills and gods.

#### Colosseum Shrine

The Colosseum is a multifaith shrine to the various warrior gods in YGGDRASIL.

### Arcane Cathedral

#### Arcane Library

The Arcane Cathedral Library has information on arcane magic and on various arcane aligned gods in YGGDRASIL.

### Divine Cathedral

#### Divine Library

The Divine Cathedral Library has information on divine magic and on various divine aligned gods in YGGDRASIL.

### Artisan Cathedral

#### Artisan Library

The Artisan Cathedral Library has information on crafting skills and on the various crafting gods in YGGDRASIL.

### Palace of Solo Players

The Palace of Solo Players is the main meeting place of for members of Solo Players.

### Treasury

This place is spatially isolated from other areas, so a Ring of Solo Players is necessary to enter the Treasury.

### Systems

As a city-based dungeon, the Fortress City of Industria has numerous systems incorporated in its data that regulate its maintenance and defense.

**Administration System**: In order to gain access to this system, it requires Imperious saying the keywords, which are "Master Source — Open." It records the daily maintenance costs, the numbers and types of vassals or NPCs present, all sorts of magical traps and gimmicks, and so on. In other words, it can record the names of all the NPCs made by Imperious. One can exert large-scale control over them all from here. If it could still function like in YGGDRASIL, one could access this system from anywhere. However, after some experimentation, Imperious finds out that in the New World, the system can only be operated from the heart of the dungeon, the Throne Room. Additionally, the system is also capable of verifying an NPC's current allegiance.

**Defense System**: The Fortress City of Industria has a defense system managed by [[]] in order to keep invaders occupied upon entering the various sections of the cities domain itself. If Imperious gives [[]] the command to do so, he can even use booby traps that cost YGGDRASIL's gold coins. This includes hidden trap weapons or create sudden floods of the troops. Avoiding the use of money to activate traps, however, [[]] can instead use the defense system for POPs and traps with serfs. After Industria is transported into the New World, friendly fire is no longer disabled like it was in the game. As a result, if someone like [[]] and the others attempt to observe Imperious through surveillance magic, the latter will automatically respond in kind with a magical counterattack of his own. In the worst-case scenario, if it does happen, the counterattack will be overlapped with Industria’s defensive network, leaving both sides clashing against one another. According to Imperious, it can lead to unnecessary damage for both him and Nazarick as they can become prone to getting hit by magical attacks from one another if not handled carefully. However, Industria is protected from the effects of hostile divination spells such as surveillance.

**Mercenary System**: Otherwise, it is also known as the automatic spawn system. This system only produces monsters that are level 10 at most, in overwhelming numbers. They were the POPs, in other words, summoned monsters that are automatically spawned by it from within YGGDRASIL. On the other hand, there are other types of monsters much higher in level than 10 alone, which can also be summoned, but only through YGGDRASIL's gold coins, up to level 50.

## Trivia

* In YGGDRASIL, Nazarick was located on Midgard, the home planet of humans.