I honestly dont know whats new in 0.17, maybe no difference? Someone has to try it out.
This is what it says under the download link:
★Basically, boss inma (deadly sin inma and bonus boss)
HCG is installed for 2 scenes,
Only one scene can be viewed in the trial version.
★For those who have purchased the setting material collection “GESTALTER”
Enter the password written in GESTALTER (alphanumeric characters at the bottom left of the colophon)
By entering in the shrine on the right back from the succubus house
You can fight against the demon "Symmetry (Lv120)".
However, because it is assumed that the battle will take place after clearing the main story,
You cannot win due to level restrictions or equipment conditions within the trial version.
★Various data has been changed since Ver0.03.
It is possible to transfer save data, but
If the level of your ally Inma has increased to an extreme level,
There is a possibility that you may not be able to learn some skills.
The final version will be adjusted so that it can be learned according to the current level.
Downloadlink:
You must be registered to see the links
Anyways, from what I understand in the full ci-enpost, the full version will be released at the end of the year and they already finished another game named "M galaxy". Idk when it will release though.
Edit: I couldnt find any new content