Undead Onslaught

75 achievements

Ultra Rare×24

Very Rare×19

Rare×16

Uncommon×13

Common×3

About Undead Onslaught's achievements

Undead Onslaught has 75 Steam achievements, 24 of them ultra-rare — unlocked by under 5% of players. The rarest is "Colossal Knuckles", earned by just 0.2% of players. Below is the complete achievement list with global rarity and a full achievement difficulty breakdown.

Rarest achievement

0.2%

of players earned "Colossal Knuckles"

🗺️ 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 Undead Onslaught achievements

75 achievements

Colossal Knuckles

Rank up Gauntlet of the Titan to max level.

Ultra Rare0.2%

Sin and Win

Rank up Icon of Blasphemy to max level.

Ultra Rare0.2%

Goat Big or Goat Home

Rank up Blood of Baphomet to max level.

Ultra Rare0.3%

Chalice in Wonderland

Rank up Goblet of House Veremontis to max level.

Ultra Rare0.3%

Frost and Found

Rank up Horn of Eternal Winter to max level.

Ultra Rare0.3%

Shock and Awe

Rank up Living Spark to max level.

Ultra Rare0.3%

Fangsgiving

Rank up Vampire's Fang to max level.

Ultra Rare0.3%

Lord of the Bling

Rank up Dark Lord's Scepter to max level.

Ultra Rare0.4%

Spirit BBQ

Rank up Flaming Soul to max level.

Ultra Rare0.4%

Dark Souls

Collect 1 million souls

Ultra Rare0.6%

Nailed It

Rank up Six Inch Nail to max level.

Ultra Rare0.8%

Bloody Arsenal

Max out 7 Blood weapons in a single run.

Ultra Rare1.2%

Temporary Insanely Overpowered

Gain a total of 66 minutes of Buffs from Dark Obelisks.

Ultra Rare1.4%

Altar Ascended...Madness Descended!

Fully empower the Shrine of Dis using your Skulls.

Ultra Rare1.5%

Skulls for the Skull...Sofa?

Collect 300 Skulls in total.

Ultra Rare2.0%

Master of Madness

Set Madness to the maximum level and complete a run.

Ultra Rare2.2%

Lord of the Rings

Unlock items Chaos Incarnate and Stagnation of Order

Ultra Rare2.3%

Now I Siege you, now I don't

Unlock the Siege and devastate your enemies.

Ultra Rare2.6%

Goblin Slayer

Kill 50.000 Goblin enemies

Ultra Rare3.0%

Taurok Unleashed

Kill 500 enemies with Taurok’s Minosian Stampede.

Ultra Rare3.8%

They See Me Scrollin' - They Forgettin'

Collect 20 Scrolls of any type as The Forgotten.

Ultra Rare4.2%

Against All Odds

Win a run with no Upgrade Scrolls used.

Ultra Rare4.4%

Skullector

Collect 180 Skulls in total.

Ultra Rare4.7%

Beyond Immortal Limits

Obtain 5 Legendary Scroll Upgrades in a single run.

Ultra Rare4.9%

Fully Evolved Villain

Unlock all evolutions and achieve villainous perfection.

Very Rare5.3%

Hell Hath no Trick

Use Ultimate 3 times for each phase as Dark Ascendant in a single run.

Very Rare5.3%

Endless Carnage

Survive for 1 minute on Onslaught Level 5.

Very Rare5.4%

A Castle in Sylvania

Unlock Seraphyne Von Eldrath and make sure the Von Eldrath dynasty reigns supreme!

Very Rare5.7%

IRS - Inferno Reigns Supreme

Collect 500 Dark Offerings in total.

Very Rare5.8%

Villainous Legend

Complete 50 runs, while surviving for at least 10 minutes.

Very Rare5.9%

Stormcaller’s Mastery

Unlock 3 evolutions of different elements for Zargoth in one run.

Very Rare7.1%

???

Hidden achievement — tap Reveal secrets to spoil

Very Rare7.3%

Ascendant's Inferno

Unlock The Dark Ascendant and become the master of darkness and flames

Very Rare9.7%

Firestarter

Evolve two different fire-based abilities into evolutions.

Very Rare10.0%

It's Time to Even the Scales

Unlock Vespera Darkmoon and claim vengeance for the forsaken

Very Rare11.4%

The True Villain

Kill 50 Blessed enemies in a single run.

Very Rare11.5%

Evolution Revolution

Unlock 10 evolutions and master the art of villainy.

Very Rare11.9%

Legen...wait for it...dary!

Collect 5 Legendary Powers in one run.

Very Rare12.3%

Greed is Good

Collect 6666 Gold in a single run.

Very Rare12.7%

Bite Me!

Unlock Vampire's Teeth and sink your fangs into new powers.

Very Rare12.8%

Nosferawesome

Unlock the Nosferatu's Orb and drain the life-force of your enemies.

Very Rare14.0%

Eyes Wide Shut

Unlock the Whispers of the Eyeless and dominate the souls of your enemies.

Very Rare14.3%

Spectrum of Despair

Unlock the Prism of Pandemonium and unleash chaos in every shade.

Very Rare15.0%

Such a Cursed Run

Curse 500 enemies in a Single Run as Vespera.

Rare15.4%

Nememesis

Kill 3 Nemesis Heroes in a single run.

Rare16.6%

Temporary Overpowered

Gain a total of 66 seconds of Buffs from Dark Obelisks in a single run.

Rare17.0%

Storm of Souls

Unlock the Soulstorm evolution.

Rare17.1%

A Thing in The North

Unlock the Northern Morningstar and shatter the brittle bones of your enemies.

Rare17.4%

Master of the Onslaught

Reach Onslaught Level 3 in a single run.

Rare17.6%

Wisp Me Luck

Unlock the Wisp and watch it haunt your enemies.

Rare18.0%

Evil Inc.

Collect 100 Dark Offerings in total.

Rare18.2%

Challenger’s Spirit

Complete 5 Challenge Altars in a single run.

Rare18.8%

Tax Collector, But Less Evil

Collect 20 Dark Offerings in a single run.

Rare19.2%

Collector of Carnage

Slay one of every enemy type!

Rare19.7%

Vampire State Building

Unlock Castle Von Eldrath

Rare22.0%

The Defiant Marksman

Unlock Varkath and master the Crestfallen Bow.

Rare23.7%

Ashes to Ashes

Unlock the Black Flame and burn your foes to ash.

Rare26.3%

Camp-aigner!

Complete 10 Quests in a single run.

Rare26.3%

From Beyond

Wield the scroll and let the chaos unfold

Rare28.3%

Exiled Legion

Summon 50 Exiled Knights in a single run with Aurelian.

Uncommon32.0%

A Glimpse of Greatness

Discover your first ability evolution!

Uncommon33.9%

They see me scrollin' - they hatin'

Use Upgrade Scrolls to enhance an ability 10 times in one run.

Uncommon35.4%

Beyond Mortal Limits

Obtain a Legendary Scroll Upgrade.

Uncommon36.9%

Cold is the Void

Activate shatter effect by Frost Bolt 100 times in a single run.

Uncommon37.2%

Power Overwhelming

Unlock Zargoth, master of storms and devastation.

Uncommon38.1%

A Curse to Remember

Unlock the Voodoo Doll and unleash your curse-crafting skills

Uncommon38.4%

Power Routine

Collect 5 Dark Offerings in a single run.

Uncommon39.1%

Goatfather’s Blessing

Unlock Baphomet’s heart and spread the infernal legacy.

Uncommon40.0%

Imp-possible Power

Unlock Aphorius and burn through your foes.

Uncommon41.3%

Horn to Be Wild

Unlock the Minosian heir turned gladiator.

Uncommon44.1%

The Slayer Rises

Defeat your first Hero Nemesis.

Uncommon44.1%

Sunfall Rising

Unlock Aurelian and cleanse the land… in his own way.

Uncommon47.7%

Aspirant of Darkness

Complete all aspirations for one villain.

Common53.2%

First of Many

Obtain your first Skull within a run.

Common67.0%

Villain's Journey

Start your first Run.

Common77.3%