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