Chthonian TD

Chthonian TD

27 achievements

Ultra Rare×4

Very Rare×8

Rare×6

Uncommon×2

Common×7

About Chthonian TD's achievements

Chthonian TD has 27 Steam achievements, 4 of them ultra-rare — unlocked by under 5% of players. The rarest is "Builder III", earned by just 2.7% of players. Below is the complete achievement list with global rarity and a full achievement difficulty breakdown.

Rarest achievement

2.7%

of players earned "Builder III"

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Community Ratings

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Difficulty—

Easy → Brutal

Enjoyment—

Meh → Loved it

Grindiness—

No grind → Huge grind

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All Chthonian TD achievements

27 achievements

Builder III

Place 500 towers.

Ultra Rare2.7%

Master Builder

Place 1,000 towers.

Ultra Rare2.7%

World Eraser

Defeat 10,000 enemies.

Ultra Rare2.7%

CATACOMBS.

Clear a run in the CATACOMBS.

Ultra Rare2.7%

Harbinger of Extinction

Defeat 5,000 enemies.

Very Rare5.5%

Engineer’s Obsession

Upgrade towers 5,000 times.

Very Rare5.5%

Trial by Fire

Clear a run in the Molten Depths.

Very Rare5.5%

Permanent Advantage

Purchase 20 upgrades.

Very Rare8.3%

Frozen Resolve

Clear a run in the Frozen Caverns.

Very Rare11.1%

Relentless

Defeat 500 enemies.

Very Rare13.8%

Compounding Power

Purchase 10 upgrades.

Very Rare13.8%

Swarmcrusher

Win a run with enemy amount set to 3.0×.

Very Rare13.8%

Tinkerer II

Upgrade towers 100 times.

Rare16.6%

Tinkerer III

Upgrade towers 500 times.

Rare16.6%

Swarm Control

Win a run with enemy amount set to 2.0× or higher.

Rare16.6%

Forgotten No More

Clear a run in the Forgotten Ruins.

Rare16.6%

Long-Term Plan

Purchase 5 upgrades.

Rare19.4%

Builder II

Place 50 towers.

Rare22.2%

Beyond the Boss

Enter Endless Mode once.

Uncommon44.4%

First Investment

Purchase 1 upgrade.

Uncommon47.2%

Into the Mines

Clear a run in the Abandoned Mines.

Common55.5%

Tinkerer I

Upgrade towers 10 times.

Common58.3%

Hundred Fallen

Defeat 100 enemies.

Common61.1%

First Victory

Win a run.

Common61.1%

First Stand

Win a run with enemy amount set to 1.0× or higher.

Common61.1%

First Blood

Defeat 5 enemies.

Common77.7%

Builder I

Place 5 towers.

Common80.5%