Blockland vs Urban Dead
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!
Urban Dead
Urban Dead is a mainly text-based MMO game set in a post-apocalyptic city that you can play straight from your browser. Assume the role as an urban survivor trapped in a quarantined city just trying to get by. However, unlike most games, Urban Dead is an MMO and as such, you'll encounter other players as you wander from place to place hoping to scavenge something - anything - that might help you. These players can be friendly or hostile (though, it's more often the case the latter).You can even set up a center of operations, so to speak, by clearing a place out and lock the place down. Other players might try to break into your base though, so it might be best to recruit a few trustworthy players to help you maintain your base and keep it as well as everything you hoard in it safe from any looters. Of course, there are also zombies that will attack your base and you, if you are unlucky enough to bump into one or an entire horde.
Urban Dead is a quite different text-based game admittedly, but it is still very addictive to play. It might be best to play with friends though due to how its base building feature is structured and well, there is always safety in numbers.