Here is the full list of all 12 Spartacus Legends trophies - there are 8 bronze, 3 silver and 1 gold.
Reach Level 50 Fame.
Conquer all districts.
Perform 25 executions or slaughters.
Win at least 1 match with each style (including unarmed).
Conquer your first district.
Unlock all arenas and fight in all arenas at least once in Legends Mode.
Defeat a legendary gladiator.
Revive a dead Gladiator for the first time.
Win 5 consecutive fights in the Insulae district.
Drive the crowd into a frenzy and win a fight by executing your opponent with a finishing move.
Defeat an Opponent of Threat 100 or higher.
Complete the Tutorial.