The Plains of Eidolon Title update for Warframe has 13 achievements.
Kill 100 grounded enemies while in Archwing Mode above the Plains of Eidolon.
Complete 10 bounties given by Ostron townspeople.
Catch 10 fish.
Kill an enemy from over 100 metres away across the Plains of Eidolon.
Complete "Saya's Vigil" quest.
Craft your first Zaw.
Survive a night on the Plains of Eidolon.
Travel 100,000 metres across the Plains of Eidolon.
Travel over 500 metres in a single slide across the Plains of Eidolon.
Kill 100 Plains Beasts.
Unearth 100 Deposits from the Plains of Eidolon.
Explore all of the Eidolon Caves.
Defeat an Eidolon Teralyst.