Ammossum

91 achievements

Ultra Rare×37

Very Rare×26

Rare×15

Uncommon×10

Common×3

About Ammossum's achievements

Ammossum has 91 Steam achievements, 30 of them ultra-rare — unlocked by under 5% of players. The rarest is "Last stop: Hell", earned by just 0.1% of players. Below is the complete achievement list with global rarity and a full achievement difficulty breakdown.

Rarest achievement

0.1%

of players earned "Last stop: Hell"

🗺️ Community guides & walkthroughs

Community Ratings

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Difficulty—

Easy → Brutal

Enjoyment—

Meh → Loved it

Grindiness—

No grind → Huge grind

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All Ammossum achievements

91 achievements

Dam problem

Defeat 15000 Beavers

Ultra Rare0.0%

Frogotten

Defeat 10000 Frogs

Ultra Rare0.0%

Swamp hound down

Defeat 2500 Reptiles

Ultra Rare0.0%

Take out the trash

Defeat 10000 Raccoons

Ultra Rare0.0%

Fresh air at last

Defeat 25000 Skunks

Ultra Rare0.0%

Shell we dance?

Defeat 2500 Snails

Ultra Rare0.0%

What even is that?

Defeat 25000 Bugs

Ultra Rare0.0%

Last stop: Hell

Complete a Run into Hell

Ultra Rare0.1%

Shell shocked

Defeat 2500 Armadillos

Ultra Rare0.1%

Big stack

Collect all items from the Chips branch

Ultra Rare0.1%

Hope is overrated

Complete a Hopeless Run

Ultra Rare0.2%

Event horizon

Collect all items from the Gravity Bomb branch

Ultra Rare0.8%

The Source provides

Complete a Cursed Run

Ultra Rare0.9%

Storm chaser

Collect all items from the Vortex branch

Ultra Rare0.9%

Ale aboard!

Collect 30 Fragile Cargo railcars

Ultra Rare1.0%

Buy low, win high

Win a run as the Banker

Ultra Rare1.3%

Pocket artillery

Collect all items from the Slingshot branch

Ultra Rare1.3%

Complete formula

Collect all Alchemist railcars

Ultra Rare1.6%

Chosen by the Source

Win a run as the Adept

Ultra Rare1.7%

Smooth sailing

Win a run as the Sailor

Ultra Rare2.0%

Shrapnel specialist

Collect all items from the Flintlock branch

Ultra Rare2.0%

Measure twice, shoot once

Win a run as the Gunsmith

Ultra Rare2.2%

Nothing to declare

Win a run as the Bandit

Ultra Rare2.2%

Defying gravity

Collect all items from the Gravity Bullet branch

Ultra Rare2.4%

Now we're talking

Collect all Epic Aspects

Ultra Rare2.9%

Sharpshooter

Collect all items from the Bow branch

Ultra Rare2.9%

No more small problems

Complete a Deadly Run

Ultra Rare3.1%

Anchors aweigh!

Collect all items from the Gravity Anchor branch

Ultra Rare3.1%

High roller

Collect all items from the Dice branch

Ultra Rare3.7%

Into the Fog

Complete a Nightmare Run

Ultra Rare3.9%

Pain is gain

Win a run as the Rowdy

Ultra Rare4.0%

The cost of survival

Complete a Crisis Run

Ultra Rare4.0%

What goes around...

Collect all items from the Boomerang branch

Ultra Rare4.0%

Gunslinger

Collect all items from the Revolver branch

Ultra Rare4.1%

Who's laughing now?

Defeat 100 Hyenas

Ultra Rare4.1%

Mine, all mine!

Collect all items from the Mine branch

Ultra Rare4.7%

Catch me if you can

Win a run as the Traveler

Ultra Rare4.8%

Bomb squad

Collect all items from the Bomb branch

Very Rare5.4%

Gentleman's choice

Collect all items from the Cane branch

Very Rare5.7%

Mad alchemist

Collect all Liquids

Very Rare5.7%

Straight shooter

Collect all items from the Bullet branch

Very Rare6.3%

Celestial collector

Collect all items from the Cosmic Shard branch

Very Rare6.6%

All in

Win a run as the Gambler

Very Rare6.7%

Off the rails

Complete an Insane Run

Very Rare6.8%

Hammer time!

Collect all items from the Hammer branch

Very Rare7.0%

Things are getting weird

Complete a Mutant Run

Very Rare7.3%

Laser show

Collect all items from the Crystal branch

Very Rare7.4%

A bit of everyone

Collect all Heroic Aspects

Very Rare8.3%

Cascade effect

Collect all items from the Cascade branch

Very Rare8.6%

Shadow play

Collect all items from the Shadow branch

Very Rare9.4%

Core values

Collect all items from the Core branch

Very Rare10.4%

Born to hunt

Win a run as the Hunter

Very Rare11.0%

Jellyfishing

Collect all items from the Mushroom Jellyfish branch

Very Rare12.0%

Just the basics

Collect all Common Aspects

Very Rare12.6%

Jack of all trades

Collect all items from the Toolbox branch

Very Rare13.0%

Entomologist

Collect all items from the Bugs branch

Very Rare13.1%

Bottled potential

Collect all items from the Alchemist's Arrow branch

Very Rare13.6%

Size matters

Complete a Tough Run

Very Rare14.3%

Master key

Collect all items from the Bone Key branch

Very Rare14.3%

This town ain't big enough

Win a run as the Sheriff

Very Rare14.4%

Full prescription

Collect all items from the Pill branch

Very Rare14.6%

Explosive menagerie

Collect all items from the Explosive Bullet branch

Very Rare14.9%

Anything but common

Collect all Uncommon Aspects

Very Rare15.0%

Shrapnel safari

Collect all items from the Shrapnel branch

Rare16.0%

Welcome to the club

Collect all items from the Club branch

Rare17.3%

A rare collection

Collect all Rare Aspects

Rare17.6%

Freight collector

Collect all Cargo railcars

Rare18.6%

All aboard!

Complete a Classic Run

Rare20.1%

Archaeologist

Collect all items from the Ancient Coins branch

Rare20.4%

Straight to the point

Collect all items from the Arrow branch

Rare20.6%

Needlework

Collect all items from the Sharpie branch

Rare21.4%

Deal with the devil

Collect the Dark Pact railcar

Rare22.2%

Reap the rewards

Collect all items from the Hoe branch

Rare22.9%

Full house

Collect all Carnie railcars

Rare24.8%

Seasoned hunter

Collect all Poacher railcars

Rare25.8%

Bone collector

Collect all items from the Bone Bullet branch

Rare26.4%

Cut it at the Source

Defeat the Source

Rare26.9%

Made to order

Collect the Mechanic railcar

Rare27.4%

Bowling champion

Defeat the Big Beaver

Uncommon32.7%

Stumped

Collect all items from the Stump branch

Uncommon33.1%

Rock solid

Collect all items from the Stone branch

Uncommon33.9%

Black gold

Collect all items from the Coal branch

Uncommon34.3%

Armed to the teeth

Collect all Shooter railcars

Uncommon35.3%

Reed the room

Collect all items from the Reed branch

Uncommon36.1%

Prickly business

Collect all items from the Cactus Ball branch

Uncommon37.9%

Mycologist

Collect all items from the Strange Mushroom branch

Uncommon38.6%

Spare parts

Collect all items from the Scrap branch

Uncommon39.2%

Odds and ends

Collect all items from the Pocket Junk branch

Uncommon44.4%

My new big friend

Defeat the Bear

Common51.1%

Dentist’s nightmare

Collect all items from the Tooth branch

Common52.2%

Stick around

Collect all items from the Branch branch

Common71.1%