Minecraft is a sandbox video game created by Swedish developer Markus Persson, released by Mojang in 2011 and purchased by Microsoft in 2014. It is the single best-selling video game of all time, selling over 180 million copies across all platforms by late 2019, with over 112 million monthly active players.

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, a cooperative shooter-survival game for up to four players to fight off zombie-like creatures and defend objects with fortifications they can build; Fortnite Battle Royale, a free-to-play battle royale game where up to 100 players fight to be the last person standing; and Fortnite Creative, where players are given complete freedom to create worlds and battle arenas.

Posted by Generic aka RSDuck

I'm not a linux expert, but try right clicking the file, then select properties or something like that and then permissions. There have to be a checkbox where you can set the file to be executable