Here is the full list of all 40 A Legionary's Life achievements.
Defeat Lucius Junius.
Win a Civic Crown during the campaign in Hispania.
Win a foot race.
Defeat Epidius.
Survive one game.
Win 10 Cups in one game.
Win a Bronze Armilla.
Win a Bronze, Silver and Gold Armilla in one game.
Win a Mural Crown.
Reach at least 71 in both the Sword and the Shield Skills.
Win a Civic Crown during the campaign in Africa.
Win a Cup.
Find out every weakness of the Numidian camp.
Win a Gold Armilla.
Reach the rank of Centurio Prior.
Reach the rank of Centurio Posterior.
Reach the rank of Optio.
Win a Silver Armilla.
Reach at least 50 in both the Sword and the Shield Skills.
Reach the rank of Tesserarius.
Survive the siege of New Carthage.
Offer a sacrifice to the gods, but doubt its usefulness.
Win a javelin contest.