In the game Diver Dave, as one of the main tools for players, the dagger is not only used for mining ores but also plays a crucial role in combat and exploration. To enhance the gaming experience, players need to know how to upgrade the dagger to increase its damage and functionality. Below are the detailed steps for upgrading the dagger, helping players complete tasks more efficiently.

First, players need to advance the main storyline of the game to Chapter 2 to unlock the weapon shop function. After successfully defeating the Giant Squid King, the weapon upgrade function will be activated. Completing this step is the foundation for upgrading the dagger; only after unlocking the weapon shop can players proceed with further upgrades.
Upgrading the dagger requires collecting various materials, which can be obtained by diving and exploring different sea areas. Common resources such as iron ore and copper ore can usually be found on rock walls or in mine areas in shallow waters, while rare ores like blue crystal and sea green stone are distributed in deeper regions. Additionally, defeating specific enemies or completing side quests can also yield upgrade materials.

After entering the weapon shop, players can select the dagger they wish to upgrade from the interface. Confirm the selection using the operation keys on the left, then enter the dagger's upgrade interface. Upgrading requires consuming materials, gold, and other resources. During the upgrade process, players should carefully read the description of each upgrade option and choose the path that best suits their playstyle.
The upgraded dagger performs better in terms of attack power and ore mining capabilities, allowing for the rapid collection of higher-level ores, especially with additional mining effects on certain specific ores. Moreover, the enhanced dagger not only increases base damage but also unlocks more practical functions, such as obtaining more rare resources during deep-sea expeditions, making it easier to handle underwater enemies.

Besides the dagger, players can also upgrade other weapons to tackle different game challenges. For example, the underwater rifle deserves priority enhancement due to its significant damage output. After being strengthened, it can also expand magazine capacity, suitable for long-term planning. The red sniper rifle is particularly effective against giant bosses, especially when facing the Giant Squid and Wolf Eel.

The above introduction covers the method of upgrading the dagger in Diver Dave. Dagger upgrades are an important aspect of the game, as the upgraded dagger excels not only in combat but also in exploration and resource gathering. Therefore, players should prioritize dagger upgrades to improve the overall gaming experience.