Minecraft is a sandbox video game created by Swedish game designer Markus "Notch" Persson, later fully developed and published by Mojang, a company he founded. The creative and building aspects of Minecraft allow players to build with a variety of different cubes in a 3D procedurally generated world. Other activities in the game include exploration, resource gathering, crafting, and combat. [source]
Fortnite is an online video game developed by Epic Games and released in 2017. It is available in three distinct game mode versions that otherwise share the same general gameplay and game engine: Fortnite: Save the World, Fortnite Battle Royale and Fortnite Creative.
Players can use their pickaxe to knock down existing structures on the map to collect basic resources that are wood, brick, and metal. [source]