Just picked up Terraria and I'm loving it. I played Starbound a while back and read that it was more or less a spiritual successor to Terraria. Terraria has all the things I wanted to see from Starbound. The crafting system is so expansive. The difficulty is real though, I travelled through 2 biomes and hit something with large beetles and cave worms that chomped me to death. Zombies, floating eyes, and slimes were no problem. Same for the mobs in the desert, easy...but once I hit that 3rd biome I was in trouble, even with my metal armor.