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