Here is the full list of all 15 Remnants of the Dawn achievements.
Complete the game within 75 minutes.
Complete the game without using health pack.
Complete the game without spending any essence or currency.
Complete the game on easy.
Complete the game on medium.
Complete the game on hard.
Obtain all weapons.
Upgrade Health Completely.
Upgrade Speed Completely.
Upgrade Melle Completely.
Upgrade Pistol Completely.
Upgrade Rifle Completely.
Upgrade Machine Gun Completely.
Kill 550 enemies.
Destroy 550 crates.