osu! runs thanks to players who contribute a small amount of money in exchange for some in-game perks, like profile customisation, better integration and larger beatmap upload limits.
You can see a full list of benefits here!
Supporter tags are non-recurring payments. If you buy one while you still have a supporter tag active, it will extend the duration it lasts.
The osu! team thanks you from the bottom of our hearts for keeping this game and community alive!