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