Aground vs Salem
Aground
Aground is a 2D, side-scrolling, survival-themed adventure game where you'll be digging out the bowels of the earth for precious ores to turn into tools, weapons, and armor or to sell to gain coins. Similar to games like Kingdom: Classic or its sequel, Kingdom: New Lands, the game will have you venture out to explore new islands to discover more about the story behind the land, to meet new characters and to obtain better resources to craft superior items.The storyline in this game is pretty intriguing as well. It features a Bermuda Triangle-like area where people often get shipwrecked and are washed up to one of the shores of the small archipelago. The islands are filled with weird creatures and is rich with minerals and resources. As survivors starting from scratch, they do not have access to the technologies they used to enjoy that is until apparently a mysterious tribe, called the Mirrows, helped to set stuff up.
Aground offers players the sort of freedom that Minecraft is able to provide and yet, is not fully a sandbox game nor does it have a procedurally generated map. Of course, this game has a great storyline, along with quests to help drive those plot points forward, and that alone makes it a really fun game to play.
Salem
Salem is an old-school and somewhat obscure (but fun) sandbox MMORPG that unlike Wurm Online has a stronger emphasis on its in-depth crafting system and survival aspect rather than building.Similar to Wurm Online though, Salem is not a voxel-based game, but you are still able to mold the game environment through resource gathering, mining and digging in a way that reminds me of the currently-shelved MMORPG, EverQuest Next: Landmark. Of course, although not exactly the focus of the game, you can still build your homestead and the process is quite similar to Wurm Online except that it occurs at a much higher speed.
Not to mention, the game world in Salem is simply humongous to the point where it feels like an actual world. Salem also borrowed some features from ArcheAge where open-world PvP is the norm, so you'll need to be vigilant at all times, but players who kill and steal for no reason will be labelled as criminals and can be punished.
However, as good as it is despite being an indie MMO and all, Salem does have its fair share of flaws due to its low development budget. So, we'd recommend you to take a look at Salem without carrying along any high expectations. It's a pretty good MMORPG like Minecraft, but if you're expecting a Minecraft clone, you may end up disappointing yourself.