The phrase "earn achievement" is correct and usable in written English. You can use it to refer to the process of getting recognition for a specific goal or accomplishment. For example, "By consistently completing his tasks on time, Mark was able to earn achievement from his supervisor."
Kids can also earn achievement badges for reading milestones – like 1,000 pages read, for example – which is something parents could choose to award for more directly, in whatever system they use in their own household – like additional allowance, extra screen time, or contributions toward a larger gift, perhaps.
Children earn achievement badges for hitting reading milestones.
People will compete to earn "achievements" and become "boss" of certain locations, and Gap, Burger King and Universal Music plan to use Loopt Star to reward loyal customers.
It encourages you to share what you're doing with others in Booyah in an attempt to earn achievements and badges.
Unlock arcade games and interviews with the original game developers as you earn Achievements on the Xbox 360® and Trophies on the PLAYSTATION®3.
Your partner will earn achievements and badges that appear in their profile, but more importantly, it will improve their credibility rating on Airtime.
There's also a partnership with Frenzoo, which will allow players to complete challenges and earn achievements from Frenzoo's game Style Me Girl.
Microsoft is integrating Xbox Live into the game so you can sign into Solitaire and play with friends or earn achievements.
This lets them reach those users who are more likely to do things like complete an in-app registration, initiate a checkout session, make a purchase, add items to a cart, view content, earn achievements and more.
The game features an online leaderboard system and players can earn achievements and in-game crowns by accomplishing certain tasks.
Also, log on everyday to earn achievements and you could possibly earn a free achievement broadcast.
Being a terminologist, I care about word choice. Ludwig simply helps me pick the best words for any translation. Five stars!
Maria Pia Montoro
Terminologist and Q/A Analyst @ Translation Centre for the Bodies of the European Union