There are four official game modes: "osu!" (called "osu! standard"), "osu!taiko", "osu!catch", and "osu!mania". With the addition of osu!lazer, players can now add custom gamemodes to the osu! client. The original osu!standard mode remains the most popular to date and as of April 2024, the game has over 3.5 million monthly active users according to the game's global country leaderboards.