Season 4 starts with resource discipline.
The season is not just one event. It is a set of overlapping daily systems that feed rankings, milestone rewards, and guild progress. Your safest play is to protect troops early, raise Oxygen steadily, and never miss repeatable medal sources.
Do this on day one before Megalodon rallies start. Joining high-level rallies without enough Oxygen can create brutal hospital timers.
Nutrient Booster upgrades Algae Pond. Algae Pond makes Seaweed. Seaweed upgrades Oxygen Plant. Oxygen Level unlocks stronger guard fights.
Early daily tasks cap at 50 medals per day. Later the cap rises to 100 medals per day after Stage 2 / Day 14.
Merchant Fleet works best when you buy, schedule auto-sell, travel, sell, and refill every dock cycle.
Eliminate Threats is an Oxygen race.
The goal is to be among the first players to defeat a Level 30 Guard on the world map. Building timing and Oxygen Plant upgrades matter more than casual progression.
Used to upgrade the Algae Pond.
Produces Seaweed when kept upgraded.
Used to upgrade the Oxygen Plant.
Raises Oxygen Level so you can fight higher guards.
Competitive push: Season Weekly Pass early, Seaweed packs only when they unlock a real push, Custom Weekly Pass for daily Seaweed, and Season Guide Milestone Pass if you are aiming for faster Level 30 guard progress.
Stay competitive: do World Boss, place high in Sea Giant Round 1, check Merchant Fleet Store for Nutrient Booster and Seaweed, and coordinate guild Sacred Spirit Altar Oxygen percentage support.
Season Medals feed rewards and rankings.
Season Medals come from daily tasks, long-term quests, and event sources. They unlock milestone rewards and also feed player and guild rankings. The season is split into four two-week stages; medals carry forward, but ranking payouts happen by stage.
Early daily tasks cap at 50 medals per day.
The cap rises to 100 medals per day after Stage 2 / Day 14. Weekly Pass doubles daily task medals.
Hit 8,200 medals for the final milestone reward, then keep going because medals still matter for rankings.
Daily medal sources:
- Bongo Rush
- Merchant Fleet
- PhantomPal Capture Squad
- Ranked Match
- Eliminate Threats
- Mine Vein Battle
- Daily Tasks
- Fishing Break after Day 14
Long-term quest sources:
- Sea Giant
- Citadel Clash
- Citadel Predictions
- World Boss
- Ruins
- Guild Race
- Arms Race hostile guild attacks
- Ruby, Tree, and Wood Guards
Sea Giant rewards steady rally activity.
Sea Giant is tied to Oxygen and long-term quest progress. Treat your strongest five attacks as leaderboard attempts, then use rallies efficiently to finish the 50-attack quest.
You need at least 10 Oxygen to attack the Sea Giant at full strength.
Your five highest damage attacks count toward the leaderboard.
Create a rally, send your own attack, and join other rallies to complete the quest efficiently.
PhantomPals reward volume and clean recalls.
PhantomPals add a new layer of team power. The safe plan is to increase capture odds early, gather in clean intervals, and build faction-matched Pal groups for your main marches.
- Buy Weekly Pass if spending: it gives 10 Pals every day.
- Use Season Coins: spend Season Coins in the Season Store to obtain Pals.
- Rush PhantomPal Camp to Level 40: higher camp level improves capture odds.
- Recall at 33.5K Rubies: each interval gives a Pal chance, so recall to protect loot.
- Build pure faction teams: same-faction Pals unlock stronger faction bonuses.
- Shift sources later: once most blue Pals are 5-star, Ruby Mines usually produce more fusion volume than Secret Realm.
Merchant Fleet is about velocity.
Merchant Fleet is a season-long event where your ship cycles through four stations daily in six-hour blocks. Buy low, schedule auto-sell, sell on arrival, refill, and repeat.
The ship moves every 6 hours, usually 5 hours docked and 1 hour at sea.
Complete all five daily reputation quests. Reputation unlocks rarer goods, larger ship space, and more plunder chances.
If your cargo is full, plundered goods can be lost. Plunder first, sell, then buy.
| Route | Cost | Revenue | Profit | Time | Profit/hour |
|---|---|---|---|---|---|
| Shoal -> Coral | 20 Sonic Stones x 5 = 100 shells | 20 x 7 = 140 shells | 40 shells | 6 hours round trip | 6.67 shells/hour |
| Shoal -> Ruins | 20 Sonic Stones x 5 = 100 shells | 20 x 8 = 160 shells | 60 shells | 12 hours round trip | 5.00 shells/hour |
Plunder targeting rule: look 2 to 3 stations backward in the trade cycle and target ships carrying higher-value goods. Because plunder takes 20% of each good type, ships with cargo in multiples of 5 are cleaner targets.
Exchange shop reminder: use Tidal Shells for season resources, extra ship space, and rare items. Extra ship slots are usually a strong early buy at new Reputation levels.
Bongo Rush rewards patience and timing.
Bongo Rush is a Flappy Bird-style daily source where small movement choices decide whether you lose hearts or farm a cleaner run. The safest pattern is simple: drop first, tap once into the gap, and double-tap only when recovering.
Let the fish fall, imagine a line just above the lower pillar edge, then tap once as the fish reaches it.
If a power-up is below the gap, let the fish drop toward it first, then double-tap to recover into the opening.
Blue hearts stack. Red hearts do not, so sacrificing a red heart for a blue heart can be worth it.
The gap is wider early, then narrows around score 40. Use early gaps to settle timing.
Research and expedition priorities.
Tempest of the Tides research:
- Hold early short research nodes for Guild Arms when possible.
- Rush the central path toward the +250 Oxygen Value node.
- Prioritize Gear Attribute nodes because Season 4 scales gear HP and Attack heavily.
- Push toward Hero Cap Extensions and PhantomPal attribute multipliers later.
Expedition Hall:
- Normal mode expands from Tier 800 to Tier 900.
- Elite mode expands from Tier 600 to Tier 700.
- Tier 650 awards a Mythic Carriage Ticket, so push early if your account can handle it.
Mistakes to avoid
- Leaving Auto-Rally on before your Oxygen can handle Megalodon rallies.
- Skipping Level 10 Legion Boss completions when they do not require Oxygen.
- Letting Ruby gatherers sit far past a 33.5K PhantomPal interval.
- Forgetting auto-sell after buying Merchant Fleet cargo.
- Running straight Shoal to Ruins routes because the flat profit looks higher.
- Spending Tempest research speedups outside Guild Arms when you could score better.
- Buying Weekly Pass late if you are trying to compete on medals.
- Missing Citadel Predictions, World Boss, or daily medal caps.