Here is the full list of all 69 Hero Academy achievements.
Win a game by destroying the enemy team.
Hit three enemy heroes or crystals at once with a single Gunner attack.
Hit three targets with a single Windblade attack.
Take all day to put in your turn after your opponent does.
Lower an enemy's maximum health by 250 with a Monk.
Win 100 games.
Win a game with the Shaolin Team.
Attack a single enemy with three different heroes in one turn.
Resurrect and fully heal a knocked-out ally in a single turn.
Execute two enemies in one turn with a Warrior.
Heal three allies with a chained Shaman heal.
Submit 100 turns.
Complete all Meet the Tribe challenges.
Complete the Tutorial.
Complete all Meet the Dark Elves challenges.
Complete all Meet the Dwarves challenges.
Complete all Meet the Council challenges.
Have an Engineer equip three allies in a single turn.
Shield a crystal with an Engineer.
Hit three enemies at once with a Void Monk's attack.
Stomp two enemy heroes in one 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.
Hit four enemy heroes or crystals at once with a single Grenadier attack.
Get a Paladin to heal herself.
Knock out three enemy heroes in one turn.
Hit three enemies at once with a Heavy's attack.
Use an assault tile to do bonus crystal damage.
Taunt an opponent.
Submit five turns.
Submit a turn less than three minutes after your opponent moves.
Knock out an enemy.
Use the undo feature and try something new.
Link a Medic to a Heavy.
Win 25 games.
Win a game with the Dark Elves.
Win a game with the Dwarves.
Win a game with the Tribe.
Win a game with the Council.
Do 2000 or more damage with a single attack.
Win a game against a random player.
Destroy two enemy crystals in a single turn.
Add Runemetal, Dragonscale, and Shining Helm to a single Knight.
Knock out a full-health enemy with one shot from an Archer.
Hit three enemies with a single attack by a Wizard with a scroll.
Do 2500 damage or more with a single Ninja attack.
Win 50 games with the Council.
Pull an enemy off an assault tile with an Impaler.
Weaken three enemies with the priestess in a single turn.
Raise two Phantoms in a single turn with a Necromancer.
Build up a max-health Wraith.
Win 50 games with the Dark Elves.
Knock out three enemies at once with an Annihilator shot.
Win 50 games with the Dwarves.
Hit three full-strength enemies in one turn with an Axe Thrower.
Do 1000 points of damage with a corpse explosion.
Damage five targets with one Chieftain attack.
Win 50 games with the Tribe.
Hit an enemy target at maximum range with the Sniper.
Knock out two enemies at once with the Pyro.
Win 50 games with the Team Fortress team.
Complete all Meet Team Fortress challenges.
Win 50 games with the Shaolin Team.
Debuff three enemies in one turn with a Poisoner.
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.