Growtopia vs KoGaMa
Growtopia
Growtopia is a unique type of 2D sandbox game due to its incredibly social nature, as well as its special seed-splicing system that allows its players to discover new types of blocks and items. In this game, players can harvest the blocks they need by punching their surroundings, be it the ground below their avatar's feet or the tree that someone planted in a public world, and then use these blocks to create almost anything they like! There are tons of worlds in this game that you can visit and you can create new ones whenever want.That said, one of the two more interesting parts about this game though is the players' ability to obtain seeds of various types of blocks like stone, dirt and others - it sounds ridiculous, but bear with me for a minute here - and splice these seeds to get other, rarer types of blocks and items. The other part being the ability to set up player stalls. Players can actually sell off the stuff they have spliced in stalls they have set up and use the game's chat system to broadcast their wares.
Growtopia may feel like just another "Minecraft-like" sandbox game albeit in a 2D form, but once you play it, you'll quickly realize how social the game is. Of course, let's not forget about its one-of-a-kind splicing system as well. This is definitely a very unique sandbox game that you'd be missing out if you have not at least tried it.
KoGaMa
KoGaMa , like Roblox, is a sandbox game that should actually be called a games platform rather than a game itself since its main two purposes for existing is to let players create their own games without really needing to learn how to code and to let other players enjoy the games they have created. It is free to play and is completely browser-based. Its creation interface is easy to use and there are plenty of fun stuff, such as guns and toggle switches that you can add into your game. As evident by the enormous volume of community-created games, the game can turn out to look very magnificent, voxel-wise! The fun that these simple player-made games provide as well as the hilarity of seeing cute voxel characters running or jumping for their lives make Kogama-built games incredibly enjoyable too!If you're looking for an alternative game for Roblox, KoGaMa is possibly the closest match, though Roblox players may enjoy games like Trove, Blockland and, of course, Minecraft as well. Do check it out!