Steam

Sins of a Solar Empire II Achievements

Current global Steam unlock rates, ordered from rarest to most common.

Total achievements72

Rarest rate0.200%

Ultra rare7

Last checkedSep 16, 2026

Current official data

Rarity labels are derived from the exact global percentage shown on each row.

Unlikely Allies Revealed

Get a synergy pact with an Eidolon player as the Advent Wrath.

Ultra rare

0.200%of Steam players

Portal Nexus

Have 10 Minor or Major Portals on a single planet.

Ultra rare

0.300%of Steam players

The Predator Becomes the Prey

Defeat an Eidolon player as the Vasari.

Ultra rare

0.400%of Steam players

Combat Jump

Teleport the Eidolon Starbase into hostile territory.

Ultra rare

0.700%of Steam players

Systemic Corruption

Corrupt and shroud 25 planets during a single match.

Ultra rare

0.700%of Steam players

Against All Odds

Eliminate an Eidolon as the TEC.

Ultra rare

0.800%of Steam players

Military Intelligence

Research all military and no civilian topics; and win the game.

Ultra rare

0.800%of Steam players

An Ancient Enemy Returns

Defeat a Vasari Alliance or Exodus Opponent as Eidolon.

Very rare

1.70%of Steam players

Dust and Echoes

Strip to the core 30 planets in one game.

Very rare

1.80%of Steam players

Don't Fix What Never Broke

Equip 3 planet artifacts at one time on the same planet.

Very rare

2.00%of Steam players

Fear of Icebergs

Win a match without using capital ships.

Very rare

2.00%of Steam players

Privateer

Control 500 supply of Pirate ships.

Very rare

2.00%of Steam players

Go Big or Go Home

Win a match only building capital ships.

Very rare

2.20%of Steam players

Harbinger Foothold

Win as the Eidolon.

Very rare

2.30%of Steam players

There Can Be Only One

Kill off 5 different minor factions on the same map.

Very rare

2.60%of Steam players

Spin A-Round, Round, Round, Round…

Shift the orbital structures in your empire on 10 different planets in a single game.

Very rare

3.40%of Steam players

Breaching The Unbreachable

Kill the Pranast United.

Very rare

4.20%of Steam players

Never Gamble With a Telepath.

Buy 100,000 crystal.

Very rare

4.20%of Steam players

Enough... Is Never Enough

Sell 100,000 crystal.

Very rare

4.30%of Steam players

Get Off My Lawn

Kill off the Viturak Cabal.

Very rare

4.30%of Steam players