The developers of 2018's Celeste have released a surprise semi-sequel to mark the game's third anniversary. Celeste director Maddy Thorson posted the news to Twitter, revealing that Celeste 2: Lani's Trek or Celeste Classic 2 is a sequel to the original prototype of the game, built in Pico-8. Pico-8 is a "fantasy video game console" game engine that allows for its games to be played within a browser.