The 𝕊𝕒𝕟𝕕𝕓𝕠𝕩 is a blockchain-based virtual reality game in which players can build and control lands (which have their own price). Land tokens are the currency of these virtual territories to be able to sell and buy goods within the game. In each land I can also program games and apps (and get paid if someone uses our services).
By December 2019, 3000 lands had been sold in 4 hours (at about $ 28), while the second one was opened on February 11, 2020 (with a proceed of $ 206,000 in Ether). The third presale of the land took place on March 31st.
So the idea is the construction of a game metaverse in which it will be possible to monetize future creations.

Players will be able to travel in the Metaverse with their customizable avatars without restrictions.
Among the land buyers also important gaming companies such as: CryptoKitties, My Crypto Heroes and Old Skull Games but also DApp.com (site inherent decentralized app).
Many blockchain companies are launching in this sector: Emurgo (Cardano) or Chain Clash (EOS).

Link: Sandbox (Game)