Uhh, not necessarily. Just because he asked you to play cards, this does not mean he likes you. But you've at least got a shot, you've now got more flexibility to go up and talk to him, since he's come up to you first.
I was out with a group and there some games. My crush came up and asked to played cards with me and my twin, does he like me?
Maybe, ever consider he likes your twin?
Maybe he likes playing cards . . . It's best not to "Jump to Conclusions" . . . Maybe meander around a possible conclusion . . . Then saunter up to it and possibly even verify your conclusion by testing with communication.