This guide is about Diver Dave, where you play as an ordinary diver named Dave. During the day, you explore the mysterious underwater world, searching for various treasures and fishing. At night, you run a shop with the ingredients you've caught. This combination of exploration, nurturing, and management gameplay is captivating but can also be confusing for beginners. To help new players, this guide will lead you through the basics to get started quickly.

1. Fishing
Fishing is crucial for obtaining ingredients for the sushi restaurant. In the early stages, you mainly use a spear to catch fish. A tip here is to catch live fish, including stunning or sedating them, which directly gives you 3 stars. If you kill the fish outright, you only get 1 star.
2. Weapon Acquisition and Upgrading
After acquiring some funds, you can visit the weapon shop to craft and upgrade weapons. Unlike the weapons picked up in the sea, these won't break no matter how many dives you take. However, before crafting, you need to research. There's a chance to find chests during your dives, which contain discovery meters. Once full, you can start researching and crafting at the shop. It's recommended to first make a sniper rifle, then a rifle and a tranquilizer gun.
Progressing to Chapter 2 unlocks weapon upgrades, which require a lot of materials. It's suggested to collect commonly used items in advance, such as the teeth of sand tiger sharks and tiger sharks. You can start collecting these whenever you encounter them. For upgrading, it's best to prioritize the old-style underwater rifle, which has decent damage and increases ammo capacity, making it very practical for both exploration and combat. For facing large bosses like wolf eels, a red sniper rifle is more effective and should also be considered for upgrading.

3. Management
Managing the restaurant can be divided into early and late stages. In the early stage, focus on catching aggressive fish, such as various types of sharks, whose sashimi prices are relatively high. It's recommended to go to the Blue Hole, where four sharks respawn each time, along with shrimp and seahorses, which you can also catch. In the later stage, when you unlock the farm's cucumbers, you don't need to dive every day and get attacked by fish. Instead, sell the cucumbers you have, and upgrade the cucumber skewers. A level 10 cucumber skewer sells for 1480, while buying one from the farm owner costs only 200, netting you 1280 profit.

4. Employees
Employees provide additional bonuses to the sushi restaurant. To develop, you need to hire various employees. Generally, the higher their level, the more money you need to pay. When you have limited funds, it's best to hire those with excellent skills. For the kitchen, Michi is highly recommended, followed by Maki or Tōhoku.
For the dining area, El Nino is recommended due to his skills in quickly clearing cluttered areas and providing perfect beverage service, saving a lot of time. Besides him, Billy, who is also skilled in cleaning, is recommended. For dispatching, anyone can be chosen in the early stage. Apart from the key employees, you can send out all other characters to bring in more resources. Later, it's suggested to upgrade Davina, who can bring back 12 seasonings and other gains daily. If you plan to open a branch and need to choose a manager, Drey is recommended, as he has high stats and can both clean tables and serve cocktails, making him very versatile.

5. Special Fish
Some fish are related to specific tasks. For example, in Chapter 2, Otto comes to the store wanting to eat curry conger eel, which can only be caught at night and cannot be directly harvested. It's suggested to use a sleep gun to put it to sleep before obtaining it. Additionally, note that night diving cannot reach deep waters and occupies a lot of business hours. Unless necessary, it's not recommended to dive frequently at night. If the desired fish does not appear in the sea, you can advance the main storyline. Fish like tuna will only appear after certain events at the sushi restaurant.

The above is the Diver Dave guide. After reading the above, you should have a basic understanding of the gameplay and choices. This underwater world has many unknowns waiting for you to explore. New players, why not jump in and use the tips from this guide to embark on a happy adventure and management experience?