Project: Immersion updated to version 2.3c
biomes o plenty
and "everything" in regards of world-generation. We will make attempt to bring these back somehow, but we also want modpack to perform well.
Type in the modpack name (Project: Immersion) or paste the following url into the search box.
Finally, click Install at the bottom right of the launcher after you select Project: Immersion from the list on the left. The launcher will handle everything else!