Here is the full list of all 41 Siege Survival: Gloria Victis achievements.
Win all battles of the whole scenario.
Provide the soldiers with enough food that they get a boost
Craft a heavy armour using the upgraded Armoury.
Unlock all available playable characters.
Find and collect all the treasure chests available in the whole scenario.
Finish the scenario without loosing any survivor.
Complete the main storyline in one of the following scenarios: Story, Quick start, or Explorer.
Keep the defence so firm, the relief forces completely smash the enemy.
Kill 3 enemy guards during a single night.
Kill an enemy guard at night.
Galvik survives and returns to the Bastion.
Reach 75 points of the the Bastion strength.
Use the trebuchet during a battle.
Craft a sword using the upgraded Armoury.
Prepare for using the trebuchet by scoring 4 points in scouting before a battle.
Send out at least 2 characters to scout the enemy lines at night.
During an enemy assault exceed their strength so much, they will flee from the battlefield.
Reach 50 points of the the Bastion strength.
Unlock Demetrius as a playable character.
Build enough beds for all characters.
Unlock all the scavenge starting point during a single scenario.
Survive a fight during the nighttime scavenge.
Complete trade with any merchant at night.
Manage a party of 4 characters at once.
Unlock Jacob as a playable character.
Defender unlocked scenario is now available for you to play
Scavenger unlocked scenario is now available for you to play
Survive the first 7 days of the invasion.
Collect all piles inside the castle.
Unlock Rena as a playable character.
Quick Start scenario is now available for you to play
Explorer scenario is now available for you to play
Join any new character to your group.
Complete the Scavenger scenario.
Complete the Defender scenario.
Complete the Survivalist scenario.
Unlock Gerard as a playable character.
Unlock Mikel as a playable character.
Unlock Kimbra as a playable character.
Unlock Rose as a playable character.
Survivalist unlocked scenario is now available for you to play