Here is the full list of all 8 Ice Fighter achievements.
Compleated Main game
Made it to night 5 in the "endless mode".
Made it to night 10 in the "endless mode".
Made it to night 15 in the "endless mode".
Made it to night 20 in the "endless mode".
Made it to night 25 in the "endless mode".
Find the second cave exit.
Have 100 gold in your inventory