Here is the full list of all 69 Hero Academy achievements.
Damage five targets with one Chieftain attack.
Add Runemetal, Dragonscale, and Shining Helm to a single Knight.
Lower an enemy's maximum health by 250 with a Monk.
Win a game with the Shaolin Team.
Debuff three enemies in one turn with a Poisoner.
Build up a max-health Wraith.
Hit three targets with a single Windblade attack.
Win 25 games.
Knock out two enemies at once with the Pyro.
Heal three allies with a chained Shaman heal.
Complete all Meet the Dark Elves challenges.
Complete all Meet the Council challenges.
Win a game with the Tribe.
Take all day to put in your turn after your opponent does.
Attack a single enemy with three different heroes in one turn.
Shield a crystal with an Engineer.
Win a game with the Team Fortress team.
Hit three enemies at once with a Heavy's attack.
Hit three enemy heroes or crystals at once with a single Gunner attack.
Link a Medic to a Heavy.
Raise two Phantoms in a single turn with a Necromancer.
Have an Engineer equip three allies in a single turn.
Taunt an opponent.
Win a game by destroying the enemy's crystals.
Hit an enemy target at maximum range with the Sniper.
Win a game with the Council.
Win a game with the Dark Elves.
Use an assault tile to do bonus crystal damage.
Submit 100 turns.
Knock out a full-health enemy with one shot from an Archer.
Hit three enemies at once with a Void Monk's attack.
Hit three enemies with a single attack by a Wizard with a scroll.
Use the undo feature and try something new.
Stomp two enemy heroes in one turn.
Win a game by destroying the enemy team.
Win a game against a random player.
Win a game and take no crystal damage.
Win a game with the Dwarves.
Resurrect and fully heal a knocked-out ally in a single turn.
Knock out three enemy heroes in one turn.
Hit four enemy heroes or crystals at once with a single Grenadier attack.
Get a Paladin to heal herself.
Submit five turns.
Knock out an enemy.
Pull an enemy off an assault tile with an Impaler.
Submit a turn less than three minutes after your opponent moves.
Complete the Tutorial.
Do 2000 or more damage with a single attack.
Destroy two enemy crystals in a single turn.
Win 100 games.
Do 2500 damage or more with a single Ninja attack.
Win 50 games with the Council.
Weaken three enemies with the priestess in a single turn.
Win 50 games with the Dark Elves.
Knock out three enemies at once with an Annihilator shot.
Win 50 games with the Dwarves.
Execute two enemies in one turn with a Warrior.
Hit three full-strength enemies in one turn with an Axe Thrower.
Do 1000 points of damage with a corpse explosion.
Win 50 games with the Tribe.
Win 50 games with the Team Fortress team.
Complete all Meet the Dwarves challenges.
Complete all Meet the Tribe challenges.
Complete all Meet Team Fortress challenges.
Win 50 games with the Shaolin Team.
Removed an enemy hero's buff and a friendly hero's debuff in the same turn with a Taoist.
Resurrect an opponent's Ninja, Wraith, Chieftain, or Annihilator with the Shadow.
Complete all Meet the Shaolin challenges.
Complete all Challenge Collection challenges.