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