There are 34 achievements worth a total of 1,000 Gamerscore, 14 of which are secret (to reveal the details of the secret achievements, please use this link).
| Name | Description | Gamerscore |
| Buccaneer | Sail for the first time | 15 |
| Secret Achievement | Continue playing to unlock this achievement. | 15 |
| Lost Treasure | Find the Knight’s Shield | 15 |
| Prototype | Wield the Shield of Chronos V1. | 80 |
| Mystic Knights | Find all Mysterious Daggers. | 30 |
| Bounty Hunter | Defeat all escaped prisoners. | 30 |
| Quite a view | Discover all overlooks. | 80 |
| Globetrotter | 100% all regions. | 80 |
| Secret Achievement | Continue playing to unlock this achievement. | 15 |
| Secret Achievement | Continue playing to unlock this achievement. | 15 |
| Secret Achievement | Continue playing to unlock this achievement. | 15 |
| Secret Achievement | Continue playing to unlock this achievement. | 15 |
| Arne of My Youth | 100% the Valley of the Warden Region | 30 |
| My Time in Sernoa | 100% Sernoa Region | 30 |
| Sleepless in Arcadia | 100% the White City Region | 30 |
| Pirta Uncovered | 100% Pirta Region | 30 |
| Submeria High and Low | 100% Submeria Region | 30 |
| Secrets of Source | 100% Source Region | 30 |
| Emptiness of Outlands | 100% Outlands Region | 30 |
| Secret Achievement | Continue playing to unlock this achievement. | 15 |
| Secret Achievement | Continue playing to unlock this achievement. | 15 |
| Secret Achievement | Continue playing to unlock this achievement. | 15 |
| Secret Achievement | Continue playing to unlock this achievement. | 15 |
| Secret Achievement | Continue playing to unlock this achievement. | 15 |
| Secret Achievement | Continue playing to unlock this achievement. | 15 |
| Secret Achievement | Continue playing to unlock this achievement. | 15 |
| Secret Achievement | Continue playing to unlock this achievement. | 15 |
| Secret Achievement | Continue playing to unlock this achievement. | 15 |
| Forged from Meteor | Wield the Astroblade | 80 |
| Powered up! | Power up your weapon or spell with a Power Shard | 15 |
| Full Potential | Collect all Power Shards | 80 |
| Perfect Set | Collect all Gear | 30 |
| The Crimson Hunt | Collect your first bloodstone | 15 |
| Crimson Collector | Collect all bloodstones | 30 |
Sequel to the critically acclaimed action adventure. Experience a gorgeous new third person 3D view and embark on an epic journey that unfolds the mysteries of what happened 1000 years ago.
Oceanhorn 2: Knights of the Lost Realm is developed by Cornfox & Bros and published by FDG Entertainment, and is scheduled to be released on August 2nd, 2023.