Bait, crates, keys and bag space
Craft bait at the beach station - the game lists the fish each recipe still needs - then open Wood and Stone crates with the keys you collect. Bag space is the other half of the loop: every dive ends when the bag counter fills or you surface.
Three systems decide what a dive is worth before you ever see a fish: bait, crates and bag space. They are separate menus but one economy.
Bait is a shopping list, not a consumable you buy
Bait is crafted at the island bench. Each recipe lists the fish you still need - the panel literally shows which species are missing - and then the bait goes into your dive. That design makes bait the game's targeting system:
- A bait recipe is a plan. It tells you which band and which species to farm.
- Recipes reveal the fish you have not met yet, which is a cheap way to discover what a new depth band actually holds.
- The first recipe most players hit wants octopuses - fast, direction-changing targets that punish sloppy reel timing. Beating it is the moment the tutorial stops mattering.
There is a badge for your first crafted bait (Bait Crafter), and a little over 200,000 players have earned it - roughly a third of the tutorial badge's audience, which tells you crafting is where the casual crowd stops.
Crates: Wood and Stone, opened with keys
Two crate types sit on the island. Both are opened from the same screen, and both burn keys.
| Crate | What it is for |
|---|---|
| Wood crate | The everyday crate: resources and routine supplies |
| Stone crate | The better pool, where gear and harpoons appear |
The crate screen keeps separate counters for the keys you hold, shown as small stacks with counts beside each key type. Those counters are what the reward tracks feed: codes, playtime claims and progress rewards all top them up.
Crates can hand you a harpoon outright. In the 16 October 2026 build, a streamer pulled the Lava Harpoon from a crate - so if you are deciding whether to spend a few keys, spending them on Stone is the better bet once you have a spare set.
A sane crate policy
- Open Wood crates as you get them; they smooth out the resource curve.
- Save Stone keys for a session where you are already diving deep, so a new harpoon gets used immediately.
- Never open the last of your keys right before a log-off - the gear does nothing while you are away.
Bag space: the quiet cap on everything
The bag counter reads as caught/max with a total weight, for example 1/5 and 102 kg. When the counter fills, the dive is over whether or not the fish are still biting.
That makes bag size one of the most valuable stats in the game, and it is purchasable without Robux or Robux alike:
- A game pass adds bag slots - the +10 Bag pass adds ten more and stacks with the VIP pass's bonus.
- Better gear earns the same result indirectly, because a harpoon that lands contested fish makes each of your limited slots worth more.
- A full bag is a signal, not a problem. Surfacing with a full bag early beats staying down for one more common fish.
Putting it together
Bait chooses what you meet, crates upgrade what you carry, bag space decides how much you keep. The optimal dive uses all three at once: a bait recipe aimed at the band you just unlocked, an empty bag, and a crate backlog waiting on the island for when you surface.
If your bag is small and your bait is wrong, no harpoon will save the session. Fix the inputs first - the harpooning page covers the part that happens after the fish takes the bait.
