Singleplayer is provided by the 2009scape team for advanced users only. 2009scape official servers offer free membership, multiple XP rates, and are hosted 24/7. Your player save file can be exported from the multiplayer server if you wish to switch to singleplayer. However, we will not import your singleplayer save file into the multiplayer world. If you ever want to play with others, we recommend the multiplayer server. If you have any questions, feel free to ask on our Discord or Forums.