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