Virtual Villagers

Virtual Villagers is a casual game created by independent game studio Last Day of Work. It features a tribe of little people who survive a shipwreck and must build a new life on the island of Isola. It has four sequels; Virtual Villagers 2: The Lost Children, Virtual Villagers 3: Secret City, Virtual Villagers 4: The Tree of Life, and Virtual Villagers 5: New Believers, along with the spin-off Virtual Families.

Virtual Villagers: A New Home takes place after a volcano eruption destroys the island that a small tribe lived on. They escape in boats and float for days before crashing onto the beautiful island of Isola. Once there, you must build a tribe while solving puzzles to unlock the mysteries of Isola.
Virtual Villagers 2: The Lost Children: Two Too Dumb to Live villagers venture into the cave and fall down a waterfall, landing on the other shore of Isola, where they find some lost children. They begin making a new tribe there while discovering more mysteries. A lot of people thought this ended the series, but it made money, so:
Virtual Villagers 3: Secret City: A group of villagers venture to the North shore of Isola, where they find an abandoned civilization. They decide to make a new tribe there and discover more mysteries of Isola. It's not over yet folks.
Virtual Villagers 4: The Tree of Life: This game received a mixed reaction. The Tree of Life features, what else, a tree of life, that your villagers have to nurture back to health. This was the very first game that you could select what villagers you wanted to start out with.
Virtual Villagers 5: The New Believers: The most recent game, New Believers finally makes the player a literal God, as they have to get some heathens to believe in them, a giant flying hand god which is worshiped by the villagers. Guess how it ends. Just take a wild guess.

Tropes used in Virtual Villagers include:

A God Is You: Implicit in the first four games, but explicit in the fifth, New Believers, where the player has to convert a tribe of 'heathens' to the worship of the 'Guiding Hand' (that is, the player).
Always Identical Twins: Occasionally a mother will have twins or (rarely) triplets. They are simply clones of each other.
Capcom Sequel Stagnation: And how. Almost nothing changes between games, though, it is just an island simulator.
G-Rated Sex: When you drop your villagers on another villager of the opposite gender, a kiss sound is played and the two will head to the shack, and the woman will come out with a baby. Occasionally before the male even gets to the shack, she will come out with a baby.
- If the female is prevented from going to the shack the baby will appear out of thin air in the mother's arms, fully dressed in swaddling clothes.
Shout-Out: The fish of fertility from Virtual Villagers: A New Home is the same fish of fertility from Fish Tycoon. Likewise, the plants and fish you are trying to discover in Plant Tycoon and Fish Tycoon are from Isola.