Here is the full list of all 53 Timemelters achievements.
Kill all enemies in less than 100 seconds
Help the villager reach Lancestorm
THE HITMAN - Kill all enemies in less than 220 seconds using 3 Echoes
Survive the night with no villagers guarding the bridges
Save Lord Irmil with no basic mana regeneration (using only 10 Spirit Strikes)
Survive the 5th trial with 1 less echo
Find a way to cross the Breach while fighting 3 Plagues using 4 echoes
THE HUNT - Kill the 3 Plagues
Kill all enemies in less than 200 seconds
THE MIND BREAKER - Find a way to kill all enemies using 2 Echoes
Save Amannan and the Keeper without using the Voidstone or rewinding time
Protect Amannan on top of the Mountain
Escort the 3 Keepers with only one echo
Escort the 3 Keepers using SpiritSight
THE SPEED RUNNER - Escort the 3 Keepers without any Echo
Kill all 5 Death Breathers in less than 120 seconds using 2 Echoes only
Escape the cemetery in less than 65 seconds with most spells unavailable and no basic mana regeneration (13 Spirit Strikes)
REDEEM - Kill all 5 Death Breathers in less than 120 seconds using 1 Echo only
Save Sir Ecknart and Amannan without any Echo
Find a way to kill all enemnies
Save Amannan using only 2 Echoes
Save Amannan using only 1 Echo
THE BRAIN BUSTER - Find a way to kill all the Plagues
Kill all 6 Plagues with no Time Rewind
Kill all 9 Plagues with no Time Rewind
HANDS FREE - Save the Deserter without any basic attack or push back ability
Find a way to survive - enemies are always chasing you
Find "another" way to survive - enemies are always chasing you
THE SAVIOR - Kill all enemies while protecting Amannan
Kill all the Bone Walkers without moving
Kill the 2 Bone Walkers without moving
THE HOPE BUILDER - Save all allies with only 2 Echoes
Kill all enemies using only 2 Echoes
Kill all enemies using only 1 Echo
THE BACKBREAKER - Kill all enemies without any Echo or spell improvement
Kill 20 enemies in the same timeline using only Bone Walkers raised from graveyards.
Finish the Newrisen mission in COOP without restarting or using checkpoints. (If you die, change difficulty or reset to a checkpoint, you have to restart the mission to get the achievement).
Find a dead hidden character in Kabellun that got killed by a deadly sock.
In any challenge, kill 30 enemies in less than 20 seconds (can be done with the help of Echoes)
In co-op campaign, get up to brodeen cliffs and cast Wrath together with your partner
Kill the plague without moving
Save the villager without moving
THE DEADLY CHASE - Try to survive to enemies always chasing you
Finish Act I
Finish Act 2
Finish Act 3
Finish Act 4
Finish Act 5
THE PERFECT PERK - Find which perk allows you to save both allies
THINK IN 4D - Find a way to kill all enemies using 2 Echoes
Finish a solo Speedrun
Finish a Coop Speedrun