They Are Billions

34 achievements

Ultra Rare×16

Very Rare×6

Rare×6

Uncommon×4

Common×2

About They Are Billions's achievements

They Are Billions has 34 Steam achievements, 16 of them ultra-rare — unlocked by under 5% of players. The rarest is "Infected Killer Level 10", earned by just 0.4% of players. Below is the complete achievement list with global rarity and a full achievement difficulty breakdown.

Rarest achievement

0.4%

of players earned "Infected Killer Level 10"

🗺️ Community guides & walkthroughs

Community Ratings

No ratings yet

Difficulty—

Easy → Brutal

Enjoyment—

Meh → Loved it

Grindiness—

No grind → Huge grind

Want to rate They Are Billions? Sign in with Steam — one rating per person.

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

All They Are Billions achievements

34 achievements

Infected Killer Level 10

100 Millions infected killed!

Ultra Rare0.4%

Infected Killer Level 9

50 Millions infected killed!

Ultra Rare0.7%

Peaceful

Win a Survival game (Score Factor >= 100%) with no new units trained.

Ultra Rare1.2%

Ranger Revenge

Win a Survival game (Score Factor >= 100%) with just Rangers in your army. No Attack Towers allowed.

Ultra Rare1.4%

Best General

Win a Survival game (Score Factor >= 100%) with no casualties. No Attack Towers allowed.

Ultra Rare1.4%

Sniper Slaughter

Win a Survival game (Score Factor >= 100%) with just Snipers in your army. No Attack Towers allowed.

Ultra Rare1.5%

Soldier Wrath

Win a Survival game (Score Factor >= 100%) with just Soldiers in your army. No Attack Towers allowed.

Ultra Rare1.6%

Open Mind

Win a Survival game (Score Factor >= 100%) without using walls, gates and towers.

Ultra Rare1.9%

For Quintus! Level 4

Win The New Empire Campaign with a score of 70.000 victory points.

Ultra Rare2.0%

No Towers Needed

Win a Survival game (Score Factor >= 200%) without using Attack Towers like Ballista or Executor.

Ultra Rare2.1%

Infected Killer Level 8

10 Millions infected killed!

Ultra Rare2.2%

For Quintus! Level 3

Win The New Empire Campaign with a score of 40.000 victory points.

Ultra Rare2.6%

Unstoppable

Win a Survival game (Score Factor >= 100%) without pausing the game.

Ultra Rare3.2%

For Quintus! Level 2

Win The New Empire Campaign with a score of 25.000 victory points.

Ultra Rare3.5%

Infected Killer Level 7

5 Millions infected killed!

Ultra Rare3.7%

Colony Mayor Level 4

Build a colony with 10.000 colonists.

Ultra Rare4.8%

For Quintus! Level 1

Win The New Empire Campaign with a score of 10.000 victory points.

Very Rare5.8%

Infected Killer Level 6

2 Millions infected killed!

Very Rare7.3%

Survivor Level 4

Win a Survival game on Brutal mode.

Very Rare8.1%

Infected Killer Level 5

1 Million infected killed!

Very Rare11.9%

The Most Wonderful Colony

Build the six wonders in your colony.

Very Rare13.7%

Survivor Level 3

Win a Survival game on Challenging mode.

Very Rare14.1%

Survivor Level 1

Win a Survival game on Easy mode.

Rare15.4%

Infected Killer Level 4

500.000 infected killed!

Rare18.9%

Colony Mayor Level 3

Build a colony with 5.000 colonists.

Rare19.3%

Survivor Level 2

Win a Survival game on Accesible mode.

Rare20.3%

Giant Slayer Level 3

Kill three Infected Giant on the same map.

Rare20.7%

Giant Slayer Level 2

Kill two Infected Giant on the same map.

Rare22.5%

Giant Slayer Level 1

Kill an Infected Giant.

Uncommon36.7%

Infected Killer Level 3

100.000 infected killed!

Uncommon39.2%

Colony Mayor Level 2

Build a colony with 2.000 colonists.

Uncommon40.3%

Infected Killer Level 2

50.000 infected killed!

Uncommon47.0%

Colony Mayor Level 1

Build a colony with 1.000 colonists.

Common55.3%

Infected Killer Level 1

10.000 infected killed!

Common61.8%