Be sure to use up your Star Gems quickly.
Regarding the exchange Star Gems/Items after 180 days of purchase.
Announcement from the Development and Live Operation teams
According to the modification of the EULA of the 7 Apr. 2016,
all Star Gems acquired in the Shop will be exchanged against the below
mentioned item after 180 days of purchase.
The item quantity will depend on the Star Gem balance.
■Item in exchange
The exchange rate is as follows.
・1 Revive exchanged for each Star Gem.
5 Star Gems purchased more than 180 days ago will be exchanged against
■About the current Star Gem balance and their purchase date
Log in to the game,
then go to
Menu > Shop > Add Star Gem.
Select My Page at the bottom of the Add Star Gem menu.
The purchase dates can be checked from Star Gem History.
■About the Star Gem usage order.
Star Gems are used according to their date of purchase.
The first purchased ones will be used in priority.
Contact us via the Enquiry Form should you need more information.
Thank you for your understanding.
The Stellacept Online Development and Support Teams.