Here is the full list of all 52 Starpoint Gemini 2 achievements.
Control 2 mercenary ships and 3 fighter squadrons at the same time
Operate a massive carrier
Finish the storyline
Destroy a station
Gather all artefacts
Explore the entire Gemini system
Destroy 10 Empire Ships
Deal 500000 damage points with beam weapons
Destroy 100 asteroids by colliding with them
Mine 500 asteroids
Win a battle with less than 5% hull points remaining
Win a battle against 3 or more enemies without attacking them
Deal 500000 damage points with plasma cannons
Collide with a planet
Provoke non-hostile ships 10 times
Jump through a wormhole
Launch at least 20 missiles in a single battle
Destroy an enemy after your ships is destroyed
Destroy 15 veterans
Save an ally with 10% or less health by destroying his attacker
Successfully raid an Off-world Prison with your Troops
Use T-Drive
Deal 500000 damage points with railguns
Destroy a freightliner
Destroy 100 ships
Accumulate 10 million Credits
Enhance all ship systems on a single ship
Destroy an enemy by colliding with them
Destroy an enemy that destroyed one of your wingmen within a 5 second interval
Destroy 3 ships within an interval of 15 seconds
Destroy an enemy using only heavy weapons
Destroy an enemy using only one turret
Destroy an enemy with a turret while facing away from it
Destroy an enemy with full shields and hull in less than 3 seconds
Solve 20 freelance missions
Exceed the maximum engine speed
Deal 50 critical hits
Destroy an enemy without locking on it
Capture a ship
Loot a derelict
Destroy an enemy while he's charging Power to Engines
Explode in a collision with an asteroid
Take 5 times the amount of your hull integrity in damage during a single battle
Get destroyed while cloaked
Kill all heroes
Read all tutorials
Do 20 successful smuggling runs on planets
Stay cloaked and undetected for 5 minutes
Purchase 15 different ships
Travel via Power to Engines for at least 10 minutes
Visit all Gemini planets
Buy a shipment of meat and Hogwash and then fly into the suns till your ship almost pops