Here is the full list of all 16 STAR MATH: Interstellar Rogue 2 achievements.
JOIN STARMATH
SAVE 1000 CREDITS
SAVE 10000 CREDITS
100 SIN KILLS
1000 SIN KILLS
100 LEVELS DONE
500 LEVELS DONE
10 BOSSES DESTROYED
100 BOSSES DESTROYED
100 MINES BLOWN
1000 MINES BLOWN
100 STARS COLLECTED
1000 STARS COLLECTED
20 THINGS UNLOCKED
100 THINGS UNLOCKED
GALAXY WON