Full list of all 15 Knightin'+ achievements worth 1,000 gamerscore. It takes around 0.5-1 hour to unlock all of the achievements on Xbox Series X|S.
Makes you invulnerable! But only after you were hurt...
Great power may lead to unpleasant consequences (or not).
Secret hold-attack-button-to-charge technique unlocked.
Defeated the unfinished titan.
No closed chest was left behind in the Ancient Pyramid.
Found all the golden keys in the Ancient Pyramid.
Point at your target. Shoot magic bolts. Try not to miss.
Now you can move heavy things and open jars with bare hands!
Defeated almost a dragon.
Found all the golden keys in the Forsaken Ruins.
No closed chest was left behind in the Forsaken Ruins.
Allows you to dash because walking is slow and boring.
Big Red Potions... There is always not enough of them.
Place it in front of anything dangerous. It's as simple as that.
Swing it towards your foe. Haven't won yet? Repeat previous step.