Previous thread: >>5758143

Pay a visit to the >>>/aco/ Western 3D Animation General and check >>>/e/mmd for MMD ressources.

General Japanese Entertainment Resources (Hentai at the bottom):
>https://pastebin.com/66t2gC4K (embed) (embed) (embed) (embed)

XDCC:
>http://erogames.website/ (a.k.a. SANIC_HEGEHOD PACKLIST)
Tutorial:
>http://horriblesubs.info/irc-guide/

Multi part free:
>https://discordapp.com/invite/9DeM4Zp
>https://hentaibedta.net/

Streaming:
>http://ohentai.org/tagsearch.php?tag=3D
>http://miohentai.com/tag/3d-hentai
>http://hentai-for.me/3d-anime-online/

Non-exhaustive (and outdated) list of circles that are still somewhat alive:
>https://pastebin.com/1tQ0P83Q
IMP WIP folder:
>https://mega.nz/#F!nAc01LIS!GvvtpFQ1c_eMopYOGyz-Mw

Source of OP picture:
>https://www.dlsite.com/maniax/work/=/product_id/RJ284560.html