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