I would say first do Terraria VS Starbound, because you would find there are many differences there.

Then compare Starbound to Valheim and find MANY MANY similarities, such as an open workshop that let's you break the original game in twain, awkward multiplayer with overpowered characters because again, workshop, good but short questline with strict barriers such as breathing in space, withstanding extreme temperatures, and so on, and barely any rules to restrict players of any item giving or cheating. Or you can play the game as it is. Just like Valheim! The environments all have something to obtain such as veggies and ores, combat is janky but doable because of fixed animations, you have to eat or die and some food recipes are overpowered... I could go on and on comparing Starbound to Valheim.