The Trainstation portal features a minigame which you can play once a day. A spin of the train will yeild a random resource. The amount you get is dependent on your level and the number of days in a row you visit. The base amount you receive is 50 times your level. For each consecutive day you can get a bonus 10% up to a maximum of 50%.
When getting Gems, you can get more than one, but the number of them will not be multiplied by your level.
http://portal.pixelfederation.com/public/
