Here is the full list of all 33 X3: Terran Conflict achievements.
Destroy a Solar Power Plant.
Stun seven space flies at once.
Force a pilot to eject a crate worth over 10,000 Credits.
Achieve fight rank Professional.
Complete the Treasure Hunt Campaign.
Achieve trade rank Wholesaler.
Build a complex with five factories.
Build a factory.
Claim ten ships.
Pass the Flight School.
Reunite the Aldrin colony with Earth.
Complete the Aldrin Missions.
Help the Goner to rebuild and relocate their Temple.
Complete Operation Final Fury.
Reactivate the final set of Hub gates.
Acquire your personal Headquarters.
Complete the New Home Missions.
Get one billion Credits in your account.
Achieve trade rank X-TREME.
Achieve fight rank X-TREME.
Achieve the highest reputation with the main races.
Visit all sectors. Unfocused jumps don't count.
Mine ten units of Nividium.
Destroy 1,000 Kha'ak and/or Xenon ships.
Earn 100,000 Credits with a police license.
Train five marines to five stars.
Board and take over ten capital ships.
Board and take over a Xenon Q.
Finish three campaigns in Dead-is-Dead mode.
Finish six campaigns in Dead-is-Dead mode.
Finish nine campaigns in Dead-is-Dead mode.
Finish the Balance of Power mission.
Destroy 20 ships with the Plasma Burst Generator.