If you liked the Lives manga, the Anime-Planet community thinks you'd like:
Reality TV has hit a new and disturbingly graphic low with ‘The Program,' a television series in which a purposely chosen ninth-grade class is forced to fight to the death on a remote island. With only minimal survival gear and a random weapon, each student must survive and kill their friends until only one winner remains; if the group refuses to play, all of its members are killed by the electronic collars around their necks. Girlfriends and boyfriends betray each other, friends are brutally slain by their closest companions and alliances are made and broken. On screen for the world to see, only the strongest will survive this horrific, sadistic game...
Akira Sengoku and his class were traveling home from a field trip aboard Flight 357 when the plane mysteriously crashed, leaving them stranded on a hostile, prehistoric island. In this place, extinct and colossal animals run wild, quickly devouring many of the survivors and leaving the rest to fight for their lives. Alongside his childhood friend Rion and other classmates, Akira will struggle to survive in this impossible place against all odds.
Cage of Eden and Lives are a perfect pair for each other - a pre-historic landscape, scary creatures eating people and over the top ecchi. If you liked those aspects of one I can't imagine you'd dislike the other.
When Ryouga was a boy, he was the sole survivor of a terrible plane crash; with horror, he watched as the other survivors were eaten by a terrifying monster, healing Ryouga's wounds in the process. As a teenager, Ryouga is haunted by these memories and agrees to go with a stranger to a mysterious school for special people. However, little did Ryouga know that within the school's walls lied a brutal game in which cards are used to summon monsters and obliterate other players. Armed with an exceptionally powerful card known as Death Rex, Ryouga must do everything in his power to win so that he may discover the truth behind his past and accept what fate requires of him to do.
A boat approaches a remote, uncharted island, filled with people contracted by the Kashoo company. Their mission is to perform various tasks for the company in exchange for a high fee, though soon they discover that it comes at a high cost. Each person has their own reason for coming, and not all will return. What horrors await these workers, and what is Kashoo really doing behind the scenes?
La Mosca is FAR superior to Lives - but both have giant/terrifying creatures in prehistoric type settings eating people with plenty of action. If you liked Lives, give the better La Mosca a try. If the latter, read Lives with reservations.
Deep within the ocean lies the undiscovered Zombie Island and a brutal, deadly experiment: countless men and women attempt to survive amidst predators, grisly traps and the wrath of each other. The survivors, including Japanese ex-grand prix racer Toshio Tamura, are deemed worthy of hunting otherworldly Zombies that threaten all of mankind. With a bleak future and nothing but violence and tragedy ahead of him, Toshio and the others will truly come to know the horror of the Zombies – and humanity.