One Hour One Life

One Hour One Life is a multiplayer survival game about parenting and building a civilization across generations. You are born as a baby to another player, who becomes your mother, and live for one hour, with each minute representing a year. If you survive to adulthood, you may have babies of your own: other players who join the server and become the next generation.

A life across generations

You depend on your mother to keep you alive, and later may take on that responsibility yourself. Players share a family tree, with each generation inheriting what earlier generations have built and deciding whether to develop or squander it. Every life contributes to a continuing effort to rebuild civilization from scratch.

From wilderness to civilization

The online world begins as a near-infinite wilderness, measuring four billion meters from east to west and four billion meters from north to south, with a total surface area of over 18,000,000,000,000,000,000 square meters—36,000 times the size of Earth. The first player to join the server is Eve, the root of the family tree. Eve and her immediate offspring can make primitive tools, cook basic foods and start a small farm; later generations can develop domesticated animals, metalworking, permanent buildings, engines, transportation networks, photography, electronics and interplanetary travel.

Resources run out over time, so players need to manage them carefully and plan and organize together to avoid collapse. The challenge grows from individual survival in the early stages to group organization and leadership later on, as players establish ways to support the community across generations.

Play with others

The main mode has you born as a helpless baby to another player. You can also play with friends as twins, triplets or quadruplets. The game runs on persistent, centrally managed servers, and players can access the world without setting up a server. The full source code, including the server code, is available; technically minded players can run private servers or use the content editor to make mods.

Another Hour Another Planet

After mastering interplanetary travel, you gain access to Another Hour Another Planet, which features an alien world where all game elements and artwork are made entirely by the community.

Crafting and content

The game contains over 4,400 fully interactive, craftable objects and over 2,400 hand-drawn sprites.