Block Story vs Starbound
Block Story
Block Story allows you to truly enjoy an adventure of a lifetime as you set off on your noble quest to save the world by combining the popular sandbox/exploration genre with elements from an RPG.Complete a variety of quests, explore and discover wonderful new biomes, build strongholds to stake your claim on a piece of land, mine for materials to craft and/or upgrade your gear, and even battle challenging boss monsters for a chance at some glory and fame. You can also set up your own farm as well as tame and ride on the backs of magnificent creatures, including a ferocious dragon.
Not to mention, unlike its Steam/PC version, Block Story is free for your mobile! Yes, there may be some waiting time involved, ads and even in-game purchases, but all of these are just some of the things the developers have to add in just so we could enjoy the game for free. Of course, if you decide that you love the game and would like to show your support, you could always buy the full game.
Starbound
Starbound is amazingly fun 2D sandbox/exploration game that will put you in the shoes of a spacefarer and a captain of your very own spacecraft. As you travel through space, you will need to stop by planets to collect resources and perhaps even colonize them so you can also gather up a crew to man your ship. There are up to 7 races to play as, a story campaign where you are tasked to save the universe, and 3 different game modes ranging from Casual to Hardcore to either provide you with a fun relaxing experience or to put your survival skills to the test. You can even play the game cooperatively when you want. For modders, you can add in new races, biomes, dungeons, quests and anything else you'd like as well.Starbound can be turned into a pretty much an endless game due to its procedurally generated universe, where you can simply fly around in your spaceship looking for your next big adventure. Thus, you can definitely expect hours of gameplay at the very least for your first playthrough, making this game very well worth its price.