Multiplayer games I can play with my cousins in another country?

Hey so my cousins and I Skype a lot, we're really close, and I'm just poking around to find a fun game we can interact together in. Up until now we have been using Minecraft, I'm not a big fan but I'll do anything for my cousins, and I'm just looking for another option. We're animal lovers and we really like WolfQuest, so something like that we could play together? Anything is appreciated! Thanks! (Feral heart & Endless Forest don't seem to be working with my computer, even though they look great!)

League of Legends, but have to be in the same server
mostly any moba games

Ratchets

If you can handle Minecraft, try Terraria. Its like a 2-D Minecraft with way more customization.