Here is the full list of all 16 500 Years Act 1 achievements.
Complete Act 1.
Complete game without skipping any battles.
Defeat human destroyer.
Visit every solar system.
Defeat ant hive.
Defeat every enemy ship type.
Defeat pirate queen.
Defeat Llaxon Destroyer.
Get all power ups for the ship.
Recruit Yepp.
Recruit Frank.
Skip 10 Battles
Recruit Jarvis.
Save Mary.
Skip a battle.
Recruit Clarence.