100 Days at Sea Achievements Guide: All Roblox Badges, Requirements, and Pro Tips

Complete every badge with our 100 Days at Sea achievements guide — requirements, milestone tips, and pro strategies for 100% completion in Roblox.

Every Roblox survival game lives or dies by its badge hunt, and the 100 Days at Sea achievements are the reason thousands of players keep launching their rafts back into open water. These badges act as a permanent resume of your voyage — proof that you weathered the storms, upgraded your vessel, and actually reached the legendary Day 100 mark that gives the game its name. Based on player experience, the full set covers everything from first-day survival basics to late-game fishing, crafting, and exploration challenges, which means most voyagers need a real plan rather than luck.

This 100 Days at Sea achievements guide breaks down each badge category, the requirements reported by the community, and the survival tactics that separate a Day 10 shipwreck from a Day 100 victory lap. Because the game receives frequent content updates, treat everything below as a roadmap, and double-check exact badge names on the in-game badge menu before committing to a long grind.

What the 100 Days at Sea Achievements System Covers

Like most Roblox titles, 100 Days at Sea awards profile badges that appear on your Roblox account the moment you complete their requirements. You can view your progress at any time through the badge panel in the game client, and completed unlocks display alongside your avatar profile on the official Roblox platform. According to community reports, the list is organized into a handful of clear tiers rather than one flat checklist, which makes planning your run much easier.

Achievement Category	Typical Goal	Difficulty	Estimated Time Investment
Survival Milestones	Reach set day counts (Day 1, 7, 25, 50, 100)	Easy → Extreme	Spread across the full run
Fishing & Hunting	Catch a target number or rarity of fish/creatures	Easy → Medium	1–3 hours
Crafting & Upgrades	Build or upgrade raft tiers and stations	Medium	2–5 hours
Exploration & Discovery	Visit distant zones or find rare items	Medium → Hard	3–6 hours
Weather & Event Survival	Live through major storms or hazard events	Hard	Situational

Keep in mind that badge names and exact counts shift between updates. The community-maintained 100 Days At Sea Fandom wiki tracks the live list, and player experience suggests the developer adds new badges alongside major content drops — so a "complete" run today may gain new targets tomorrow.

Survival Milestone Achievements: The Day-Based Badges

The backbone of the 100 Days at Sea achievements list is the day-counter ladder. Each time you cross a major day threshold, a badge unlocks automatically. Community reports indicate the structure follows the pattern below, though the exact day values can vary by update.

Milestone	What You're Proving	Biggest Threats at This Stage	Survival Tip
Day 1	You understand the core loop	Hunger, basic crafting confusion	Gather floating debris immediately; never start a night without food
Day 7	You can sustain a stable food and water supply	Starvation, small storms	Build storage early so bad weather can't wipe your stockpile
Day 25	Your raft is self-sustaining	Hostile sea creatures, hull damage	Prioritize hull repairs over cosmetic upgrades
Day 50	Mid-game mastery	Scarce resources, bigger storms	Stockpile supplies in phases; assume every trip away from base costs food
Day 100	Endurance champion	Compound threats, burnout	Automate food production and treat repairs as a daily ritual

The jump from Day 25 to Day 50 is where most runs die. Players consistently report that resource scarcity — not combat — is the real killer, so your mid-game strategy should revolve around efficiency: shorter expeditions, fuller inventories, and repairs done before you sleep rather than after a disaster.

How to Survive to Day 100: Phase-by-Phase Strategy

Reaching the final badge is a marathon broken into three distinct phases. Chasing the 100 Days at Sea achievements without adjusting your playstyle for each phase is the fastest route to frustration.

Phase	Days	Stock Up On	Why It Matters
Early Game	1–10	Basic food, water, building materials	Survival margins are razor-thin; one bad night ends the run
Mid Game	11–50	Storage capacity, repair materials, better tools	Threats scale up faster than your raft unless you invest in infrastructure
Late Game	51–100	Surplus food, backup tools, defensive upgrades	You're playing not to lose — surplus absorbs any single disaster

A few habits, drawn from player experience, dramatically improve your odds:

Repair on a schedule, not on instinct. Waiting until your hull visibly fails is how veteran players describe their first failed run. Fix at 75% integrity.
Never travel hungry. Expeditions take longer than expected. Eat before you leave so hunger isn't ticking down mid-trip.
Save aggressively. Community reports stress exiting through the game's save flow rather than force-closing Roblox — losing a 40-day run to a crash is the most painful badge setback possible.
Consider a private server for milestone pushes. With fewer variables and other players' hazards removed, many badge hunters grind long runs in private sessions.
Play with a friend for late-game phases. One player managing repairs while the other fishes keeps both survival meters stable during long storms.

Fishing, Crafting, and Exploration Achievements

Beyond the day counter, the 100 Days at Sea achievements include a set of side objectives that reward well-rounded play. These badges are where most players lose 100% completion, because they're easy to ignore during a survival-focused run.

Achievement Type	Fastest Reported Strategy	Common Failure Point
Fishing badges	Fish during downtime between chores; keep a dedicated rod on the raft	Forgetting to fish for entire in-game weeks
Crafting badges	Batch-craft during early game when materials are cheap	Crafting only what's needed for survival
Exploration badges	Plan one long expedition per in-game day cycle	Sailing out under-supplied and turning back
Hunting/creature badges	Fight near your raft so you can retreat and repair	Chasing creatures into open water

The fishing achievements in particular reward consistency over skill. A simple routine — cast a line every time your hunger bar is above 80% — passively accumulates catches without ever interrupting your survival loop. Crafting achievements, meanwhile, benefit from planning: check the badge requirements at the start of your run and build every required structure along the way, rather than backtracking at Day 90.

Common Mistakes That Sink an Achievement Run

Most failed runs aren't caused by sharks or storms — they're caused by preventable player errors. Based on community reports and recurring complaints from players, these are the traps to avoid:

Mistake	Consequence	Fix
Ignoring the badge list until late game	Missing side achievements requires a second full run	Review all requirements on Day 1
Force-closing the game after a session	Reported progress rollbacks and lost days	Use the proper save-and-exit flow every time
Hoarding materials without crafting	Badges stall and inventory overflows	Craft in batches; every material should serve a goal
One long expedition with no backup plan	Death far from base resets momentum	Keep trips short and staged around a stocked home raft
Playing tired during a milestone push	Small mistakes compound into run-ending losses	Attempt Day 50+ pushes in focused, shorter sessions

One more warning from player experience: badge progress is tied to your session's survival run, so treating the game like a casual logout-anywhere experience is risky. Build the save ritual into your routine from Day 1 and you'll never learn this lesson the hard way.

Frequently Asked Questions

How long does it take to earn all the 100 Days at Sea achievements?

Per community reports, a full completion run typically takes 10–20 hours of active play, with the survival milestone badges consuming most of that time. Side achievements like fishing and crafting can be completed along the way if you plan for them early.

Do achievements reset if my raft sinks?

Badge unlocks on your Roblox profile are permanent once awarded. However, if your raft is destroyed mid-run, player experience suggests you'll need to rebuild and re-reach any future day milestones you haven't claimed yet — which is why defensive upgrades matter more the deeper you get into a run.

Can I earn badges on a private server or with friends?

Yes — badges earned in private servers and co-op sessions still register on your profile, according to community reports. Many veteran players specifically recommend private servers for the high-risk Day 50 and Day 100 pushes.

What's the hardest achievement in 100 Days at Sea?

The Day 100 survival milestone is almost universally cited as the toughest, simply because it demands sustained focus across the longest possible run. Everything else on the 100 Days at Sea achievements list can be recovered in a single session; the final badge cannot.

Final Word

Chasing the 100 Days at Sea achievements turns a fun raft-survival sandbox into a genuine endurance campaign. Review the badge list early, save often, repair on a schedule, and split the journey into manageable phases — and Day 100 stops being a rumor and becomes a badge on your profile. Good luck out there, and keep your hull dry.