When it comes to the Underworld Castle, veteran players are certainly no strangers to this game. As a game that combines strategy and idle gameplay, its playability has always been very strong. Recently, the fourth installment in the series has become a hot topic among players. Below is a guide for starting out in Underworld Castle 4. Not many players are familiar with this new title yet. If you have played games of this type before, you will know that the initial setup difficulty is quite high. If you have never touched the game before, not only will your efficiency be very low at the beginning, but you will also take many detours in setting up.

Upon entering the game, there will be a tutorial. The tutorial in this Underworld Castle 4 is much better compared to its predecessors. From the feedback so far, this game is more complex than the previous ones. Following the tutorial to complete the introductory missions is something players must do. After the tutorial, we will have a general understanding of the game. Next, let's talk about the priority order for building levels. In the game, the Soul Tower and Manor have the highest priority. This is because these two buildings are daily resource production facilities, mainly producing experience points, iron blocks, and materials for upgrading buildings.
The resources in this series of games have always been very important. We don't get many resources in the early stages, so we need to prioritize upgrading the buildings that produce materials to speed up our resource acquisition. After all, the higher the level of the building, the higher the output. Besides these two buildings, the next to upgrade are the Blacksmith Shop and the Adventurer's Guild. Here, the Blacksmith Shop should be upgraded first, mainly because increasing the level of the Adventurer's Guild does not increase the probability of refreshing top-tier characters. If it's about the level cap, then in the early to mid-game, players only need to unlock the appropriate level cap. In the resource-tight early to mid-game, there is no need to upgrade excessively.

However, the Blacksmith Shop is different. Upgrading the Blacksmith Shop can increase the probability of crafting top-tier equipment. Top-tier equipment is very important for our combat power growth. In the later stages, most top-tier equipment is crafted by players from the Blacksmith Shop, so prioritizing the upgrade of the Blacksmith Shop is still very important for us.

The gift issue is also a common problem for newcomers during the initial setup. After unlocking the Tribunal, players can give gifts to characters in this area to increase their affinity. In the early to mid-game, we don't have many ways to obtain gifts. Players should not randomly give gifts to characters; instead, we need to stockpile them. We wait for the character Ramsey to appear and then give all the gifts to him. After giving him the gifts, we won't get stuck in the legion battles later on. The enhancement of combat power is a key focus for players. Generally, there are three directions for enhancing combat power: first, treasures, which are the most important for combat power enhancement.
Treasures provide more and more boosts as the game progresses. The second is equipment. Although we can obtain some equipment by defeating enemies or participating in events, top-tier equipment in the mid to late game needs to be crafted by players themselves. We need to continuously consume iron to craft, which can improve the crafting level and the probability of getting top-tier items. Finally, there is the quality of the characters, which requires drawing rarer characters.

In the gacha system, many players have a misconception that referral letters can increase the draw probability. In fact, referral letters do not increase the probability of any draws. Players should not use this item recklessly in the early stages. We need to wait until we unlock SS-rank quality before using it.

The Blacksmith Shop will not produce top-tier equipment at the beginning. In the mid-game, players need to significantly enhance the Blacksmith Shop to increase the probability of top-tier equipment appearing. This way, we will have a chance to obtain top-tier equipment when crafting. If resources are tight, just enable the probability of top-tier equipment without further upgrades.

The above is the guide for starting out in Underworld Castle 4. In the early stages, after players can move freely, the first thing they need to do is explore map stages and continuously upgrade buildings. The priority for upgrades has been explained in the above text. Follow the guide accordingly.