Ultra Adventure! Go Go - Osawari Island Now Available on Nutaku
Erotic free-to-play browser game publisher Nutaku has just added a new title called Ultra Adventure! Go Go - Osawari Island to their collection.
[UPDATE] Nutaku, SuperHippo, and the Future of Osawari Island
On October 31st, 2016, the Japanese version of Ultra Adventure! Go Go Osawari Island closed its doors permanently.