This patch unlocks the +18 content of Da Capo 3 on Steam. Just run and install it inside your game directory.
If you use Linux or Mac, don't be a fag and make the patch yourself.
Also don't quote me on that but maybe achievements can be re-enabled using the -steam="yes" argument.
Seeding should be pretty slow but you can also get the direct download here: https://mega.nz/#!aVonRSKI!MK8akyMvG8MDTbGmZ_LfINJ3znqyOPaypyHs2dYuZ1Y