Blockland vs Colony Survival
Blockland
Blockland may be a voxel-based sandbox game in name, same as games like Minecraft, Roblox and others, but in reality, the game is a whole lot more unique due to its Lego-like features. In fact, due to its looks, many have likened the game to the unfortunately shuttered Lego Minifigures Online. Playable in single player or multiplayer, the game allows its players to unleash their creativity by creating literally anything they can think of. The game also has tons of different blocks, textures and assets (pre-made stuff) to cater to their creative needs, allowing players to come up with the most exciting mini-games and mazes as well as beautiful locations for themselves and their friends to hang out at. Players can even drive cars (sometimes vertically up the wall of a building, breaking all rules of perceived gravity in the game), ride bikes, pilot planes, and more.Although the game is no longer getting updates and apparently its community has been dwindling, Blockland is still an amazing game that answers the question of what Minecraft would look like if its "Lego-fied". A blank canvas await you in Blockland! Do check it out - you can try the demo for free - when you can!
Colony Survival
Colony Survival is a voxel-based town-building simulation game that emphasizes on ensuring the survival (and expansion) of your colony of people, be it by making sure they have enough food to not starve to death or by stationing enough archers around the parameter of your castle walls to repel zombies. Like Minecraft or any sandbox games, you are free to build any base you like (underground, in the sky, or a proper medieval castle with a moat and a drawbridge) as long as you've got the materials (a.k.a. blocks) to go with it and there are various crafting stations which you can build and then assign a worker to just so you can create better and more advanced items.Aside from its infinite, procedurally-generated world, the game also uses an advanced 3D dynamic pathfinding system, allowing you to funnel your people along a specific path simply by having the necessary designs. The same goes for the zombies which usually come out at night to besiege your castle and your sleeping populace. As long as the zombies can't get in and slaughter your people, you can keep expanding your population and your kingdom to whatever size you like!
Colony Survival can even be customized to whatever difficulty you like, depending on how well you think you can best the zombies. So, if you enjoy Minecraft-like games but you also happen to enjoy a "build your own maze", tower defense-like gameplay, then Colony Survival game is definitely for you!