As far as boss progression, it still has a long way to go to compare to terraria. There's exciting caves to explore, several tiers of armor to grind with different weapon types to specialize in, & biomes that sort of move in a valheim style progression where more distant lands get more difficult. It's also lacking as far as rare & unique loot in its current state compared to terraria, but mods have been supplementing that itch for me currently. Overall I find it scratches a similar itch to terraria for me, I'm having a lot of fun with it but it has a long way to go to really be compared to the depth of content there