Here is the full list of all 54 Oaken achievements worth 1,000 gamerscore.
Finish the tutorial.
Finish the first chapter.
Finish the second chapter.
Finish the third chapter.
Finish the game with the Lady.
Finish the game with the Lady on Mastery 6 or higher.
Finish the game with Kidu.
Finish the game with Kidu on Mastery 6 or higher.
Playing as the Lady, create 50 allied hexes.
Playing as the Lady, have at least 6 base attack.
Playing as the Lady, defeat 20 enemies with your attack.
Playing as the Lady, defeat at least 6 enemies in a single turn.
Playing as Kidu, defeat 30 enemies with Blaze in a single playthrough.
Playing as Kidu, cast a spell or use a skill boosted with 9 Embers.
Playing as Kidu, win an elite or boss battle without summoning any allies.
Playing as Kidu, create 40 Embers on the ground during a single playthrough.
Unlock all cards and items.
Have an elder spirit with max level and a unique Wisp.
Have an enemy Ensnared for its 2 consecutive turns.
Deal at least 12 damage in a single hit.
Create 8 allied hexes in a single turn in the Oak's Crown.
Collect at least 10 Spikefruit in the Valley of Thorns in a single playthrough.
Block unearthing enemies with other enemies 6 times in the Hollows.
Summon allies in Deep Water 8 times in a single playthrough.
Destroy 4 Amber Prisons in a single turn in the Amber Falls.
Protect the tiny Tinker in 4 different locations.
Defeat the boss in the Oak's Crown after defeating at least 10 of his followers.
Defeat the boss in the Valley of Thorns after making him charge into a wall at least 6 times.
Defeat the boss in the Hollows after having him defeat at least 3 of his own allies.
Defeat the boss in the Seas of Serpents after outsmarting it at least 6 times.
Defeat the boss in the Amber Falls after surviving a direct hit from the shattering of his shell.
Defeat the final boss without exhausting any cards.
Complete the bonus ending.
Defeat 3 targets at the same time with Aya's ability.
Defeat 6 enemies with Aya's Spiky Seeds during a single battle.
Shoot with Aya 3 times during a single battle.
Slay a boss with Enju.
Have an enemy be affected by Enju and 2 other Defenders at once.
Gain Strength from Enju's Miracle Cure at least 6 times in a single turn.
Inflict at least 12 Weakness on enemies in a single turn.
Outsmart enemies Weakened to 1 Attack 12 times during a single playthrough.
Slay a unit with at least 10 health with a single attack from Kusta.
Push a single enemy to another hex 3 times in a single turn.
Heal allies with Baralai's Mossy Cover 25 times during a single playthrough.
Move with Baralai at least 5 times in a single turn.
Stabilize a full hand of spells 3 times in a single playthrough.
Hit enemies 16 times with Raiku's Raving Foci in a single battle.
Copy spells stabilized by Raiku 8 times during a single playthrough.
Defeat 10 Voiceless enemies with Deigo's Enchanted Beads during a single playthrough.
Travel a distance of 20 hexes with your hero in a boss or elite battle.
Have a single unit deal damage with Deigo's Enchanted Beads 5 times in one turn.
Convert 15 Voiceless enemies in a single playthrough.
Defeat a boss while you have 8 or less max health.
Defeat 40 enemies with Pathfinder's Eclipsed Tears in a single playthrough.