StarDrive 2 achievements

Win a ground combat as a race with the Timid trait

Successfully threaten a race into giving you something they wouldn't have otherwise given you

Control enough sources of Spice to gain the exploitation bonus

Have at least 50 fighters deployed at the same time in a battle launched from the strategy map

Unleash the plague bomb on a planet

Eliminate a planetary population through orbital bombardment

BUT IT RAINS DIAMONDS. Colonize a world with the Diamond Rain special

Use transports to move 10+ citizens (across any number of games) from one colony to another

Colonize a Gaia planet

Have four or more citizens living on a single asteroid belt

Use espionage to plant a mole in another empire