I was playing Minecraft, then shut down my computer. Shortly after I launched Minecraft again, my world was gone, disappeared from the selection. Is there still hope? I'm extremely disappointed as I spent months upon months on this thing. If it helps, I have 18 mods running, however I highly doubt my mods caused this. Please, any help is appreciated.
Did you shut down your computer without closing Minecraft? That is very likely to corrupt the world, and otherwise it is a good idea to wait a few seconds before clicking "save and quit to title", although Forge is supposed to make the client wait for the server to shut down (the "shutting down internal server" message you may have seen, at least, it did it back when I used it in 1.6.2) before it goes back to the title screen (this is the cause of various bugs with saving chunks in vanilla, including deleted worlds have having some chunks remain).
Anyway, check your saves folder and see if the world is still there; it should be unless you actually deleted it, which you didn't (an easy way to find it is to click on "edit profile" in the launcher then click the button to open the game directory). You should see two files within the world folder, level.dat and level.dat_old; the second is a backup and you can try renaming it to level.dat, replacing the original one. Be sure to make a backup of the world first before doing this, or the following.
A more extreme fix is to make a new world with the same name and seed (hopefully you remember the seed), which will overwrite the old one, but keeping the region files which store chunk data; you'll probably lose your inventory and appear back at the original spawn point but everything else should be there unless chunks were corrupted.
You can also try posting in this thread (include a copy uploaded to MediaFire, Dropbox, etc) and have somebody else fix it if those steps don't work or there are signs of corrupted chunks (lagging or crashing on world load/in specific areas).
I was playing Minecraft, then shut down my computer. Shortly after I launched Minecraft again, my world was gone, disappeared from the selection. Is there still hope? I'm extremely disappointed as I spent months upon months on this thing. If it helps, I have 18 mods running, however I highly doubt my mods caused this. Please, any help is appreciated.
Did you shut down your computer without closing Minecraft? That is very likely to corrupt the world, and otherwise it is a good idea to wait a few seconds before clicking "save and quit to title", although Forge is supposed to make the client wait for the server to shut down (the "shutting down internal server" message you may have seen, at least, it did it back when I used it in 1.6.2) before it goes back to the title screen (this is the cause of various bugs with saving chunks in vanilla, including deleted worlds have having some chunks remain).
Anyway, check your saves folder and see if the world is still there; it should be unless you actually deleted it, which you didn't (an easy way to find it is to click on "edit profile" in the launcher then click the button to open the game directory). You should see two files within the world folder, level.dat and level.dat_old; the second is a backup and you can try renaming it to level.dat, replacing the original one. Be sure to make a backup of the world first before doing this, or the following.
A more extreme fix is to make a new world with the same name and seed (hopefully you remember the seed), which will overwrite the old one, but keeping the region files which store chunk data; you'll probably lose your inventory and appear back at the original spawn point but everything else should be there unless chunks were corrupted.
You can also try posting in this thread (include a copy uploaded to MediaFire, Dropbox, etc) and have somebody else fix it if those steps don't work or there are signs of corrupted chunks (lagging or crashing on world load/in specific areas).
TheMasterCaver's First World - possibly the most caved-out world in Minecraft history - includes world download.
TheMasterCaver's World - my own version of Minecraft largely based on my views of how the game should have evolved since 1.6.4.
Why do I still play in 1.6.4?