Underwater DuO

21 achievements

Rare×21

About Underwater DuO's achievements

Underwater DuO has 21 Steam achievements. The rarest is "Perfect Completion", earned by just 20.0% of players. Below is the complete achievement list with global rarity and a full achievement difficulty breakdown.

Rarest achievement

20.0%

of players earned "Perfect Completion"

🗺️ Community guides & walkthroughs

Community Ratings

No ratings yet

Difficulty—

Easy → Brutal

Enjoyment—

Meh → Loved it

Grindiness—

No grind → Huge grind

Want to rate Underwater DuO? Sign in with Steam — one rating per person.

ℹ️Showing global unlock rates. Sign in with Steam to see your personal progress.

All Underwater DuO achievements

21 achievements

Perfect Completion

Unlock all other achievements

Rare20.0%

Wave 10

Reach Wave 10

Rare20.0%

Wave 20

Reach Wave 20

Rare20.0%

Wave 30

Reach Wave 30

Rare20.0%

100 Defeats

Defeat 100 fish

Rare20.0%

500 Defeats

Defeat 500 fish

Rare20.0%

1000 Defeats

Defeat 1000 fish

Rare20.0%

Become the Strongest

Unlock all Training upgrades

Rare20.0%

Master Collector

Select every ability at least once

Rare20.0%

Together and Apart

Separate more than 5 times in a single run

Rare20.0%

Reunited

Have both the Seahorse and Sardine companions at the same time

Rare20.0%

Inseparable

Reach Wave 30 without separating

Rare20.0%

???