It sounds like you didn't know where to go, or what to look for. Do you know some of the basic mechanics? Like, building multiple rooms of a certain size with furnishings and light will cause NPC's to move in? Or that there's an enchanter hidden in the world somewhere that will put permanent enhancements on your weapons? Or that there's hidden underground houses with loot chests to look for? Yeah, i'd agree that if you were just running around on the surface stabbing at slimes for about 20 minutes it would get boring, but there's so much more to work towards in this game compared to Minecraft (besides building insane structures) that I think you just need to give it another shot.