Here is the full list of all 22 Captain Clive: Danger From Dione achievements.
Reach wave 10 in classic mode
Reach wave 25 in classic mode
Reach wave 50 in classic mode
Reach wave 100 in classic mode
Defeat the first boss, The Impersonator
Defeat the second boss, The Boil King
Defeat the third boss, King Simon
Defeat the fourth boss, The Boil Queen
Defeat the fifth boss, The Shaman
Defeat the sixth boss, Arzu: The Slime God
Defeat the seventh boss, Emperor Ih'e
Destroy a crate in classic mode
Dual wield any weapon
Activate Robert
Kill 1,000 aliens total
Kill 10,000 aliens total
Kill 100,000 aliens total
Purchase an armor set
Purchase The Prophecy of Vengeance
Reach wave 10 in amped mode
Reach wave 25 in amped mode
Reach wave 50 in amped mode