https://www.techradar.com/news/fortnites-playground-mode-is-going-dark-for-now

Fortnite developer Epic has announced the temporary closure of the game’s sandbox mode, Playground, to take place on July 12.

Allowing players to test out the game’s controls and building mechanics in a less pressured environment, the new 4-player Playground mode has already fostered a budding crafting community, and offers a more casual experience than the game’s hyper-competitive Battle Royale mode – in which 100 players battle to be the last one standing.