Deep Blue Roblox — Guides, Codes & Tips (2026)

Everything you need for Deep Blue, the co-op underwater survival game by @ZNoob_x and @zDudevan, in one place: active codes, a full beginner guide, and how it compares to Fisch.

Deep Blue (place ID 91505101223196) drops you and up to three friends into a vast, pitch-black ocean with a boat and a Credit quota to meet. You collect Scrap and valuables, sell them to the Merchant at spawn, upgrade your gear, and push deeper, all while procedurally generated weather, entities, and items try to end your run.

It's a lore-heavy Alpha inspired by Subnautica, Lethal Company, R.E.P.O., Dredge, and Made in Abyss, and it has already passed roughly 1.6 million visits. Because it's in active development, codes and content keep shifting, so this hub is where we keep the latest Deep Blue resources together.

The core loop is simple to learn and hard to master: collect Scrap and valuables from the dark water, sell them to the Merchant at spawn, meet your Credit quota, spend on gear and boat upgrades, then push into deeper, richer, more dangerous water and do it again. Lighted buoys cluster loot beneath them, abandoned boats hide valuable scrap metal, and the deep holds entities and structures the game never fully explains. Whether you play solo or stack a full crew of four, the tension of going just a little deeper than is safe is what keeps people diving back in.

Below you'll find our full Deep Blue coverage, the beginner guide, the live codes list, and a head-to-head against Fisch, plus quick stats and tips. We keep all of it current as the Alpha updates, so this is the page to bookmark.

Quick Stats

All Deep Blue Guides & Articles

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Why Play Deep Blue?

If you like co-op survival with real tension, Deep Blue nails it. The dark, procedurally generated ocean means no two dives are the same, and the quota clock keeps every run pressured. Splitting roles with friends, one pilots, two dive, one watches the dark, turns a scary solo experience into genuinely fun teamwork.

As an Alpha, it's also a game you can watch grow. The developers ship updates and milestone codes as the world expands, so getting in now means you're there for the build-out. Fans of Subnautica, Lethal Company, and Dredge will feel right at home in its blend of exploration, dread, and quota survival.

Getting Started Fast

New to Deep Blue? Start with our beginner guide for the full walkthrough, but the short version is this: redeem every active code for free Credits before your first dive, then farm lighted buoys for reliable loot and sell to the Merchant until you can afford survival upgrades. Keep an eye on your oxygen, never wander so far you lose track of your boat, and bank your haul often rather than gambling it on one deep dive. Once you're comfortable, raid abandoned boats for high-value scrap metal and start pushing into deeper water where the real money lives.

If you've got friends, bring them. Deep Blue is built for co-op of up to four, and splitting roles, pilot, divers, and a lookout for the dark, turns the harder quotas from brutal into genuinely fun. Solo is fine to learn on, but the game shines with a coordinated crew on voice.

How We Keep This Hub Updated

Deep Blue is in active Alpha, which means codes, balance, and content shift between updates. We re-verify the codes list against in-game redemption and the developers' official channels, refresh the guide as mechanics change, and keep the comparison current as both games update. Each cluster page links back here, so once you've bookmarked the hub you can always reach the latest version of every Deep Blue article in a couple of taps.

If you only read one page first, make it the free Robux guide: it covers the quota loop, scrap farming, diving safety, gear priorities, and how to earn Robux on the side. From there, grab live codes on the codes page and settle the "is this the ocean game for me?" question with Deep Blue vs Fisch.

Have a Deep Blue tip, a working code, or an article you'd like us to write? Suggest it in the Earnaldo Discord and we'll add it to the hub.