Psyren, Eden no Ori Recommendations
Both mangas are survival mangas in which characters are thrown into a world where they have to fight animals and beasts (Eden no Ori) / Tavoo (Psyren) for their lives.
They will uncover great mysteries of the world/island they were thrown into.
Though in Psyren , characters are able to achieve special powers.
Manga that contain a lot of action, mystery, and sci-fi elements.
Both have a lot of plot twist at various points of the story, and manage to finish the story with a reasonably well-done closure.
Eden no Ori noticeably has more ecchi scenes while Psyren has fights.