Achievements
Achievements are unlocked after you complete the rookie missions. Here you get mainly gems and rare gems for completing parts of the game and levelling up your hero rank. Be sure to check back in regularly to see if there's anything you've completed.
Achievements are broken down into four sections:
- Hero Rank
- Main Story
- Online Section / Limited Event
- Icons
Main Story
In the rewards given out for doing the main story there is one of each rare ingredient, meaning that you will have what you need to evolve a legendary (e.g. Noxdrake → Noxdragon). This is something easily missed by many players. Otherwise, completing the post story episodes give a bunch of extra gems here.
Hero Rank
In this section you will earn a huge number of gems and rare gems for increasing your hero rank. The later levels are especially generous and are a big reason why you may want to grind for exp to level up past level 150.
Online Section / Limited Event
This section has a lot of stuff you cannot complete when you first start the game. The online section pages are what you’ll get first, giving you rewards for completing the online story, side quests and story events. Completing limited-time events is not something you can expect to be doing straight away. However, “The Lost Crown Jewels” and “Chambers of the Statue” can be done early on. They are in the special ingredients section and come out regularly. If you want the gems then make sure you’re completing them each time they come out.
Icons
This section is something you probably want to check in on from time to time. You unlock icons from reaching certain milestones, collecting certain monsters and other such requirements. I have another guide detailing all the icons in the game which you can go check out if you wish: KD’s Profile Icon & Background previews. Once an icon has been unlocked here in the achievements the question mark will be lit up and you can click it to collect. Equipping your icon can be done from the main online screen by clicking in the top right where it shows your current icon.