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