Here is the full list of all 124 Time Break Chronicles achievements.
Defeat Xendros.
Defeat the Devastator boss.
Defeat the King Terror boss.
Defeat the CENCOM boss.
Defeat the Sin boss.
Defeat the Fate Weaver boss.
Defeat the Magma Beast boss.
Defeat the Hell Pit boss.
Build the Nano Lab Facility in your town.
Defeat the Forest Heart boss.
Defeat the Shredder boss.
Defeat the Kraken boss.
Defeat the King Shroom boss.
Have a hero be consumed by a Death Worm.
Rescue Caleb the Dark Knight.
Rescue Kiara the Banshee.
Rescue Thorg the Viking.
Rescue Og the Caveman.
Rescue Drax the Cursed.
Build the Research Lab in your town.
Defeat the Living Snow boss.
Rescue Jed the Pioneer.
Rescue Odrak the Barbarian.
Rescue Brand the Cleric.
Rescue Vikki the Vul.
Rescue MU-21 the Med Bot.
Rescue Sovras the Necromancer.
Rescue Rafael the Sentinel.
Rescue Harry the Medic
Defeat the Cursed Mirror boss.
Rescue George the General.
Defeat the Spirit Well boss.
Rescue Elgeon the Ice Mage.
Defeat the Rock Beast boss.
Rescue Ishikawa the Ninja.
Rescue Korr the Sasquatch.
Rescue Paul the Linebacker.
Rescue Chuckles the Clown.
Rescue Cain the Maelstrom.
Defeat the Mutant Twins boss.
Rescue Seth the Lizardman.
Build the Forge in your town.
Rescue Maximus the Blacksmith.
Rescue Yukiko the Assassin.
Rescue Javed the Immortal.
Rescue Samuel the Lawbringer.
Rescue Jack the Pirate.
Rescue Ambroise the Plague Doctor.
Rescue Darius the Marine.
Rescue Big Dan the Biker.
Defeat the Venom Queen boss.
Rescue Buzzard the Raider.
Defeat the Broodmother boss.
Rescue Amenemhet the Jackal Priest.
Rescue Carlos the Super Soldier.
Defeat the Big Blob boss.
Rescue Slade the Rocker.
Train a skill.
Bind a relic to a hero.
Craft a relic.
Complete the tutorial.
Win a run in Singularity Mode.
Win a Singularity Mode run at Difficulty 5.
Win a Singularity Mode run at Difficulty 10.
Win a Singularity Mode run at Difficulty 15.
Complete 3 quests for all Act 1 heroes in Chronicle Mode.
Complete 3 quests for all Act 2 heroes in Chronicle Mode.
Complete 3 quests for all Act 3 heroes in Chronicle Mode.
Complete 3 quests for all Act 4 heroes in Chronicle Mode.
Complete 3 quests for all Act 5 heroes in Chronicle Mode.