Arcantia Network is a Minecraft Java server focused on Economy and SlimeFun, with a survival style setup built for players who like to gather, build, and progress at their own pace. It is meant for anyone who wants a chill SMP experience with a bit more to work toward than plain vanilla.
Both Premium and Cracked Java players can join and play together, since the server is meant to be open to everyone, not just people who can afford a paid account. If you're into a friendly economy-based survival server with PvE and community play, Arcantia Network keeps it simple and welcoming.