Tested with Xander 2.1.1 and Alien Biomes 0.3.10, and for unknown reasons world gen consists entirely of gravel indeed. If you press "restart" a lot you'll eventually get a map with only snow instead :p. Can be fixed by simply disallowing gravel from generating at all (data-final-fixes):
Code: Select all
if (mods['xander-mod'] == '2.1.1') and (mods['alien-biomes']) then data.raw.tile.gravel.autoplace = nil end
I've added it to my hotfix mod. @Therax: Feel free to add it to your own hotfix, mine isn't really up to date.