Terraria is an odd creation. On one hand it has a few RPG elements typical to Action RPGs. You pick up potions, use a wide selection of weapons and spells and there are plenty of chests with treasure in seemingly random places. On other other, it feels a lot like Minecraft. You can build impressive creations from pretty much any material you obtain. Be it, construct a mountain range on flatland, a dark fortress, or a simple stone house, with a chimney. Since you can randomly generate a map each play through will feel different, and you can use characters from previous games... so in the end, the question is, what is Terraria?