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Stellaris Achievements

Official Steam achievement definitions and latest reported global unlock rates, ordered from rarest to most common.

Total achievements219
Rarest rate0.000%
Ultra rare92
Last checkedSep 12, 2026
Delayed official data

Rates and award counts were last observed on Sep 12, 2026.

121
Opposites Attract

Have all eight ethics represented within your Federation

Very rare
3.10%last reported global rate
122
Voight-Kampff

Develop the means to prevent nefarious infiltration

Very rare
3.30%last reported global rate
123
We Are Legion

Be a biological Hive Mind with at least 100,000 drone Pops.

Very rare
3.30%last reported global rate
124
Hear Me Roar

Hatch the egg

Very rare
3.40%last reported global rate
125
Return to Dust

Destroy an Enclave

Very rare
3.40%last reported global rate
126
Clash of the Titans

Defeat a Fallen Empire's Titan fleet with a Titan of your own

Very rare
3.60%last reported global rate
127
Dust Off

Complete the Zroni Precursor chain

Very rare
3.70%last reported global rate
128
1999 A.D.

Slaughter the Voidspawn

Very rare
3.80%last reported global rate
129
Exterminatus

Use a World Cracker to destroy another Empire's capital planet

Very rare
3.90%last reported global rate
130
They Come In Pieces

Vivisect an alien

Very rare
3.90%last reported global rate
131
Xenophage

Keep at least 5 different species as livestock in your Empire

Very rare
4.00%last reported global rate
132
Animal Farm

Reach 50 Vivarium capacity.

Very rare
4.10%last reported global rate
133
Unboxing

Open up a shielded world

Very rare
4.20%last reported global rate
134
Slave to the Systems

As an Authoritarian Empire with at least 50,000 Pops, have at least 20,000 enslaved Pops.

Very rare
4.30%last reported global rate
135
Wormageddon

Destroy a Voidworm nest.

Very rare
4.30%last reported global rate
136
No Khan Do

Kill the Great Khan in battle

Very rare
4.40%last reported global rate
137
Planet of the Mechs

Terraform a planet into a Machine World.

Very rare
4.40%last reported global rate
138
Unravelling Enigma

Uncover the secrets of an ancient fortress

Very rare
4.40%last reported global rate
139
Black Hole Mining

Build a Matter Decompressor

Very rare
4.50%last reported global rate
140
Warrior of Light

Destroy a wraith

Very rare
4.50%last reported global rate