Decentraland is an open-source interactive virtual reality platform in which users can buy, use and build on virtual land. The system guarantees its users full property rights as well as permanent property registration on the Ethereum blockchain.
There is no real goal in Decentraland. Instead, users cross a virtual world and buy virtual lands, named LAND. So you can create content and apps there, as well as experiment and monetize them. It is an interactive 3D world, which can be accessed using a virtual reality headset or the classic view of an internet browser. The number of LANDs you can buy is limited, each unit having an area of 16 x 16, but there is no limit to the height of what you can build on it. The possibilities for the Decentraland project are immense.
Decentraland allows you to build anything on your LANDs, MANA is the project's default asset. It is an ERC-20 token that you can buy and resell like most other cryptocurrencies on exchange sites. The MANA cannot be mined, and once it is used to buy land from Decentraland, the asset is burn. As Decentraland is built on the main Ethereum network, LANDs are stored in Ethereum smart-contracts.