Dave the Diver is one of the most satisfying games of the last decade precisely because of its split identity: half underwater action-adventure, half sushi restaurant management sim. Neither half feels bolted on. The diving feeds the restaurant, the restaurant funds your diving gear, and the loop tightens into something genuinely hard to put down. This guide breaks down both halves — diving mechanics, restaurant systems, resource decisions, and early-game priorities — so you arrive on day one knowing exactly what matters.
If you’re still deciding whether this is your kind of game, it fits squarely in the cozy-game-with-teeth category — chill enough to play on a quiet evening, but with enough systems and story to stay compelling for 25+ hours. Browse our cozy games hub for more picks in the same vein.
What Is Dave the Diver?
Dave the Diver is a single-player indie game developed by MINTROCKET (a Nexon studio) and released in June 2023 on Steam, with a Nintendo Switch port following in October 2023. It earned an 89 on Metacritic and sits among the most-played indie games of its year — unusual for a title that defies easy categorisation.
The game has two distinct halves that share one resource pool:
- Diving: An action-adventure set in the Blue Hole, an ever-shifting underwater cave system. You explore, fight sea creatures, catch fish, and push deeper as your gear improves.
- Restaurant management: Each evening you run Bancho Sushi, a beachside restaurant. You set the menu, seat customers, manage staff and keep dishes coming out on time.
The two halves feel completely different to play but are tightly linked by design: the fish you catch become the dishes you serve, and the money you earn funds better diving equipment. Dave the Diver is not a cozy farming sim — there is real-time combat and resource pressure — but it sits comfortably alongside other cozy RPG and crafting games that pair exploration with a relaxing home-base loop.
How the Daily Loop Works
Every in-game day follows a reliable three-part structure. Understanding this rhythm is the single biggest thing that prevents frustration in the first few hours.
- Morning dive: The Blue Hole opens at the start of each day. This is your primary fishing session. The depth layout changes slightly every day, so fish that were easy to find yesterday may now require a different route. Morning dives are longer because your oxygen and inventory start full.
- Afternoon dive: A second, shorter session to top up supplies or push a specific objective. By afternoon you’ve already spent some consumables, so plan this dive around what the restaurant needs most for the evening rather than exploration.
- Evening restaurant service: Bancho Sushi opens. You seat customers, take orders, deliver food and manage throughput. Restaurant service ends automatically when the last customer leaves, then the cycle resets.
Key insight: the restaurant menu for the evening is fixed from what you stocked during the day. If you dive carelessly and run out of a popular ingredient, you’ll either serve an empty slot (bad) or swap to a lower-value dish (mediocre). Planning your dive around that evening’s menu is how good sessions look.
Diving Basics: The Blue Hole Explained
Oxygen Management
Your oxygen tank is your primary constraint. The standard tank runs out faster the deeper you go due to pressure. When oxygen hits zero you start losing health rapidly, so treat the half-empty mark as your turn-around point until you upgrade. Early upgrades to tank size pay back immediately — prioritise the first two oxygen expansions above almost everything else.
You can partially refill oxygen by surfacing briefly; a full trip to the surface resets it completely. During timed missions or story sequences, keep one eye on the tank even when distracted by loot.
Depth Zones and the Blue Hole Ecosystem
The Blue Hole has three broad depth bands, each with its own fish and hazards:
| Depth Zone | Approximate Range | Key Fish | Hazard Level |
|---|---|---|---|
| Shallow | 0 – 50 m | Tuna, mackerel, clownfish, squid | Low — safe for starter gear |
| Mid-depth | 50 – 130 m | Swordfish, red snapper, octopus, blue tang | Medium — aggressive predators appear |
| Deep | 130 m+ | Giant oarfish, anglerfish, whale shark variants, rare species | High — needs upgraded gear |
The layout of tunnels connecting these zones shifts each morning, so check the minimap on arrival before committing to a route. Deep zones hold the rarest and most valuable fish for the restaurant, but early-game gear cannot sustain the oxygen cost of staying deep long enough to make it worth it. See our Dave the Diver fish guide for a full breakdown of species by depth and value.
Weapon Selection
Dave starts with a basic harpoon gun. It works fine for small, slow fish but frustrates against fast or large targets. The weapon system evolves significantly as you progress:
- Harpoon (starter): reliable, limited ammo. Best for precise shots on small fish.
- Underwater rifle: faster fire rate, better for medium fish and aggressive creatures.
- Net gun: captures live fish, which sell for more and unlock special menu items.
- Tranquilizer: stuns without killing, required for certain rare catches and story quests.
- Electric gun: area damage, good for clusters of smaller fish and jellyfish hazards.
Match the weapon to the target. Wasting harpoon shots on a school of small fish is inefficient; switch to the electric gun for those and save precision weapons for valuable single targets.
Restaurant Management Basics
Building Your Menu
Bancho Sushi’s menu is built from recipes you unlock and the fish you’ve caught. A stronger menu has more dishes, higher-value items, and enough stock of each to serve every table. Key principles:
- Depth and breadth: Start with four to six reliable dishes you can consistently stock. Add premium items as you can reliably catch the fish.
- Avoid empty slots: Running out of a listed item during service makes customers unhappy and drops your nightly star rating. Only list dishes you have enough of.
- Unlock recipes actively: New recipes come from completing ingredient collections, story progress and vendor purchases. Talk to every character and complete side quests to unlock them faster.
Hiring Staff and the Hiring Timing Window
Staff are hired via a phone interface (unlocked early in the story). Each staff member has a specialisation: some are front-of-house and seat customers faster; others are kitchen support who speed up dish preparation. The right hire depends on your current bottleneck.
Hiring timing matters because new hires take one in-game day to start. Hire staff the morning before a difficult evening shift (VIP event, large party) rather than the same day. The staff upgrade tree is also persistent — invest in levelling a reliable server early because upgrade returns compound over dozens of service nights.
Event Nights and VIP Customers
Certain evenings trigger event nights: themed sushi nights, food critic visits, or VIP guests who demand specific dishes. These events are flagged before you dive that day, giving you a target for the afternoon dive. Prioritise catching the flagged ingredients on event days — the rating and revenue bonus for satisfying a VIP customer is substantially higher than a normal night.
Resource Management: Sell vs Save
Fish have two uses: sold directly for money, or processed into menu dishes for higher per-unit restaurant revenue. The right choice depends on rarity and current menu needs.
| Fish Type | Recommendation | Why |
|---|---|---|
| Common shallow fish (tuna, mackerel) | Mostly sell surplus; keep minimum for menu | Easy to restock; sell extra for cash |
| Mid-depth fish (snapper, octopus) | Prioritise for menu | Higher dish value than sale price |
| Rare deep fish (oarfish, whale shark) | Always save for menu; never sell | Premium dishes worth 3–5x the raw sale price |
| Live-captured fish (net gun) | Keep for aquarium or special dishes | Aquarium display boosts restaurant ambience rating |
Money from selling surplus fish funds equipment upgrades. The correct balance in early game is: fill the menu first, sell what’s left. In mid-game, rare catches almost always belong on the menu.
Progression Priorities: What to Upgrade First
Dave the Diver surfaces upgrade options through story progression and a vendor called Dr. Bacon (found early near the dive site). Spend money on upgrades in roughly this order in the first five to six hours:
- Oxygen tank expansion ×1: Extends dive time immediately. The biggest early quality-of-life upgrade.
- Harpoon gun upgrade: Enables two-shot kills on medium fish, saving ammo and time.
- Oxygen tank expansion ×2: Lets you reach mid-depth zones comfortably.
- Restaurant seating expansion: More tables means more covers per evening — direct revenue increase.
- Underwater rifle purchase: Unlocks faster combat and opens mid-game content.
- Kitchen upgrade (Bancho menu slots): Adds dish slots so you can diversify the menu in mid-game.
Resist buying every gadget immediately. Weapons beyond the starter set are situational; upgrading core oxygen capacity and restaurant throughput has more consistent payoff in the first third of the game.
The Staff System and VIP Events in Depth
The staff system is more strategic than it first appears. Each staff member has a trait (e.g., Speed, Charm, Strength) and an upgrade tree. Charm staff speed up ordering at tables; Speed staff reduce the time between order and delivery. A balanced team of two Charm and one Speed hires handles most service nights comfortably through mid-game.
VIP events come in two varieties:
- Food critic visits: Critic scores your menu quality and presentation. Have at least three diverse dish categories ready and avoid any empty item slots on this night.
- Special guest events: Named characters from the story appear as VIP customers. They each have preferred dishes. The game telegraphs these preferences early if you pay attention to dialogue.
VIP events are the biggest single-night revenue spikes. They also unlock permanent restaurant upgrades when handled well, making every VIP night worth planning around.
Early Game Tips: Do Not Skip Side Quests
The most common mistake new players make is treating side quests as optional flavour. In Dave the Diver, side quests unlock core features:
- The aquarium (adds ambience and customer tip boosts) is unlocked via a side quest mid-Chapter 1.
- The staff phone system (hiring staff) is gated behind an early side character’s request.
- Net gun ammo upgrades come from a side quest vendor who only appears after you complete his intro task.
- Special recipes for premium dishes are often side-quest rewards, not story drops.
If the game prompts you to check in with a character, do it before the next dive. Side quests take minutes and the systems they unlock are permanent.
Mid-Game Tips: Diversify and Go Deeper
Once you reach Chapter 2 (approximately 5–8 hours in), the core loop evolves:
- Diversify the menu: Add a mix of affordable staple dishes and two to three premium items. Customers in mid-game have higher spending limits but expect variety. A menu of only basic rolls caps your per-night revenue.
- Explore deeper zones actively: Mid-depth fish become your primary menu ingredients. Invest in gear before diving past 100m for the first time — hazards scale sharply.
- Farm rare fish on event nights: The Blue Hole layout in mid-game starts flagging rare spawns on the minimap once you upgrade sonar (a Dr. Bacon purchase). Rare fish spawn locations reset daily, so check the minimap every morning.
- Upgrade staff over hiring more: A fully upgraded two-person team outperforms four low-level hires. Staff experience carries over — invest in the team you already have.
Story Overview (Spoiler-Free)
Dave the Diver follows Dave, a retired diver recruited by an eccentric marine biologist named Cobra to investigate the Blue Hole — an anomalous underwater formation that physically changes its layout every day. The mystery deepens as Dave encounters an ancient underwater civilisation, mutated sea creatures and the truth behind the Blue Hole’s behaviour.
The narrative is told through cutscenes, side characters at the restaurant and dive-site encounters. It is genuinely surprising in places — tonally warm on the surface with some dark undercurrents. The main story runs roughly 20–25 hours at a moderate pace. Side content and full completion push past 40 hours. The pacing is generous — you’re never forced to rush through the story to unlock content you need for the loop.
If you enjoy this kind of game, it sits naturally alongside other chill genre picks in our cozy games for beginners guide.
Frequently Asked Questions
Is Dave the Diver hard?
Not especially. The diving has real-time combat that can catch you off guard early, but there’s no permadeath and difficulty spikes are gentle. The restaurant side has no fail state — bad nights cost money but don’t end runs. It suits players who want engagement without frustration.
How long does it take to beat Dave the Diver?
The main story takes approximately 20–25 hours. Full completion including side content and achievements pushes to 35–45 hours. Most players’ natural playthrough falls in the 25–30 hour range.
Is it more diving or restaurant management?
Roughly 60–40 in favour of diving across the total play time, but both halves receive substantial content updates across chapters. Early-game is more diving-heavy; mid-game tilts toward balancing both equally.
What is the best staff to hire first?
Hire one Charm-trait front-of-house staff member as your first hire. Charm reduces ordering time at tables, which directly reduces the number of unhappy customers during busy evening service. The second hire can be a Speed-trait kitchen staffer once your menu has four or more dishes.
Does the Blue Hole ever stop changing?
The daily layout shift is a permanent feature tied to the story. Late-game unlocks give you partial map persistence for specific areas, but the core randomness is the point. Adapt your dive route to what the minimap shows each morning rather than relying on muscle memory.
Sources
- Dave the Diver on Steam — MINTROCKET
- Dave the Diver — Metacritic (89/100 critic score)
- IGN game coverage
I've been playing video games for over 20 years, spanning everything from early PC titles to modern open-world games. I started Switchblade Gaming to publish the kind of accurate, well-researched guides I always wanted to find — built on primary sources, tested in-game, and kept up to date after patches. I currently focus on Minecraft and Pokémon GO.