Here is the full list of all 39 SpellForce 3 achievements.
Reached the maximum hero party level in the campaign.
Those prisoner clothes really look good on you.
Beat the SpellForce III campaign.
The fate of Nortander lies in your hands.
Fully upgraded Isgrimm's armor.
You fulfilled a task for the Elder Dragon.
Slew the Elder Dragon.
Unlocked the human faction and upgraded it to the maximum.
Completed the Mentalist Ritual at Aonir's Blade.
Unlocked the orc faction and upgraded it to the maximum.
Reached hero party level 20 in the campaign.
Learned how to summon Titans.
Unlocked the elven faction and upgraded it to the maximum.
Sided with the Iron Falcons in Aonir's Blade.
Sided with the Deathmen in Aonir's Blade.
Gave more than the bare minimum when asked for help.
Rallied all possible companions to your cause.
Gained the allegiance of the Morhir Elves.
Defeated the Orcs in Farlon's Hope without producing extra units.
Gained the allegiance of the Orcish Firewielders.
Brought a tribute to the God-King.
Gained the allegiance of the Wayfarers.
If only real life were as simple as that.
Helped all of the Refugees in Farlorn's Hope.
Defeated the Nortander army in the Iskander Wilds.
Claimed Mulandir as your base of operations.
Played the campaign together with a friend.
Played a practice skirmish match against the AI.
Stop touching the workers!
Escaped the Grey Keep with a new ally.
Dealt with Alistair.
Freed all the prisoners when escaping from the Grey Keep.
You were killed by a tiny spider. That's actually pretty impressive.
Finished Liannon.
You were killed by peaceful wildlife.
You avatar died.
Got your first level up.
Defeat a human opponent in PvP.
You annoyed the composer by muting the ingame music.