Here is the full list of all 77 Tower of Time achievements.
Get Cindros Sword
Kill 3 enemies in one fight with Headshot
Summon Mech 4 times in one combat
Use Blind Rage 2 times in one combat
Equip all Relics on one character
Kill 5 enemies in one combat with Blades of Justice
Deal 1000 damage with Ent in one combat
Blind 20 enemies in one combat
Increase a single skill to a maximum.
Learn all 6 skills on a single hero.
Transmute gems 30 times
Use Teleport 5 times in one combat
Unlock Mystic Whisper.
Reach the 25 point attribute cap for any attribute.
Find all Sleath notes.
Apply weakness to 20 enemies in one combat.
Craft 30 items
Unlock Blademaster Boron.
Resolve the conflicts between the Water and Earth Servants.
Finish battle with full hp of whole party
Apply 10 enchantments
Place Exploding Runes 5 times in one combat
Solve the puzzle of the clocks.
Use Dash skill 10 times in one combat
Reach level 6 with any hero.
Cast Fireball 5 times in one combat
Defeat Ancient Guard
Heal 1000 damage in one fight with Healing Totem
Unlock Runelord Rakhem.
Upgrade Mage Tower.
Kill 100 enemies.
Equip all items for a hero.
Unlock Druid Aeric.
Kill death reaper
Win battle with a caged hero
Upgrade Armory.
Heal hero which has less than 5 HP
Use Teleporter.
Win battle with just one champion
Obtain a legendary item.
Kill first enemy
Reach the ultimate attribute cap of 40 for any attribute.
Win battle when whole party has less than 10 HP
Withdraw from battle 100 times.
Cast Elemental Barrage 25 times in one combat
Use Gravity Well 4 times in one combat
Deal 10000 damage in one combat with Rain of Arrows
Win combat with health and mana of every champion under 10%
Win a fight on level 4 or higher with 2 or less champions
Apply 30 upgrades to items