Rakuten started today the service of the R Games which is a DMM.com like online platform with basic free to play games. You can reach the games from your browser or from your smartphones (most of the games are compatible with them) and you can play with each games after a simple account registration.
With the service start, from today you can enjoy the “Opening Memorial Campaign” until May 31, 2017. In this campaign you can earn fifty medals (equivalent to 500 yen) and you can use them in your games on the R Games. If you are interested in it, visit the official website now!