An Osu! experiment which is available since 2017. Made by Dean "peppy" Hebert. And has a lot more features than the Osu!Classic, such as customizable UI placement, A lot more modifiers than the Osu!Classic version and much more.
Osu! player: Man Osu! is so fun! but I want a new major update though.
Osu!Lazer player: Didn't you hear of Osu!Lazer? It has a ton of updates by the developers of Osu!
Osu! player: So when is that gonna be released?
Osu!Lazer player: It's been available since early 2017...