#7 Blockland
Blockland is basically a Lego simulator, which allows you to do what you would with a real set of Lego with multiple players. It even comes replete with a physics engine that allows you to wreak havoc on your creations.
Released years before Minecraft, Blockland offers players a non-linear open world to do as they please, giving players the chance to design and construct elaborate structures. Each player character in the game is represented by a stylized minifig, which players can use to explore the environment of their creation.
In addition to simply building things, players can also build and drive around vehicles, use weapons, and interact with the environment. The game also offers players with a variety of rulesets to apply to their worlds, so players can engage in competitive deathmatch or even survive a zombie apocalypse.