Here is the full list of all 65 Etherium achievements.
Finish the skirmish tutorial mission
Complete the conquest tutorial
Achieve a victory in ranked multiplayer in each territory on the planet: SERENADE
Achieve a victory in ranked multiplayer in each territory on the planet: ARCTIS
Achieve a victory in ranked multiplayer in each territory on the planet: DESTA FATALIS
Achieve a victory in ranked multiplayer in each territory on the planet: MARS
Achieve a victory in ranked multiplayer in each territory on the planet: RESURGENCE
Achieve a victory in ranked multiplayer in each territory on the planet: PILO
Win a conquest with the CONSORTIUM in MEDIUM difficulty
Win a conquest with the CONSORTIUM in HARD difficulty
Win a conquest with the INTAR in MEDIUM difficulty
Win a conquest with the INTAR in HARD difficulty
Win a conquest with the VECTIDE in MEDIUM difficulty
Win a conquest with the VECTIDE in HARD difficulty
Win a 'Medium' or 'Hard' conquest with the CONSORTIUM in 'IRON MAN' mode
Win a 'Medium' or 'Hard' conquest with the INTAR in 'IRON MAN' mode
Win a 'Medium' or 'Hard' conquest with the VECTIDE EMPIRE in 'IRON MAN' mode
Complete the conquest mission: DEFENDER
Complete the conquest mission: PROFUSION
Complete the conquest mission: TECHNOLOGIST
Complete the conquest mission: SPATIAL DOMINATION
Complete the conquest mission: STELLAR ADMIRAL
Complete the conquest mission: ELITE INFANTRY
Complete the conquest mission: NEXT GENERATION TANK
Complete the conquest mission: DEATH COMES FROM ABOVE
Complete the conquest mission: GOD OF WAR
Complete the conquest mission: MASTER TACTICIAN
Complete the conquest mission: OMNITECH
Complete the conquest mission: MERCILESS
Complete the conquest mission: PLAINS WARRIOR
Complete the conquest mission: STEPPES FIGHTER
Complete the conquest mission: GUARDIAN OF THE DEAD WORLD
Complete the conquest mission: RIDER OF THE STORM
Complete the conquest mission: LAVA KINGDOM
Complete the conquest mission: DESERT RAT
Complete the conquest mission: MOTHER PLANET
Complete the conquest mission: EMPEROR
Complete the conquest mission: INTERGALACTIC TRAVELER
Complete the conquest mission: UNIFIED TRIBES
Complete the conquest mission: RISE OF THE MACHINES
Complete the conquest mission: MASTER OF THE PHEROMONES
Destroy 3 fleets in the conquest
Attain the SILVER league
Attain the GOLD league
Attain the DIAMOND league
Win your first victory in a 1v1 ranked game
Win 10 victories in a 1v1 ranked game
Win 25 victories in a 1v1 ranked game
Win 50 victories in a 1v1 ranked game
Win 100 victories in a 1v1 ranked game
Win your first victory with an ally in a 2v2 ranked game
Win 10 victories with an ally in a 2v2 ranked game
Win 25 victories with an ally in a 2v2 ranked game
Win 50 victories with an ally in a 2v2 ranked game
Win 100 victories with an ally in a 2v2 ranked game
Win a ranked game in under 10 minutes
Win a ranked game with orbital cannons by reducing the enemy structure points to zero
Rally two secondary factions in a single game
Complete technology level V in a ranked game
Build your first colossus in ranked
Trigger a weather event with the INTAR in a ranked game
Create 5 faction buildings in a ranked game
Rally the Raiders in a ranked game
Rally the Guardians in a ranked game
Rally the Parasites in a ranked game