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7,364,694 lives lived for a total of 1,524,213 hours
740,074 people lived past age fifty-five
318 generations in longest family line
555 monuments completed, 2865 in progress
Current player arc has been going 6316 years
Previous arc lasted 22646 years

a multiplayer survival game of parenting
and civilization building by Jason Rohrer
2148 Player Reviews, 93% Positive


No middle-person


Open Source
  • Lifetime server account
  • All future updates
  • Unlock on Steam
  • Full source code
  • Tech support included
Available now for $20

This game is about playing one small part in a much larger story. You only live an hour, but time and space in this game is infinite. You can only do so much in one lifetime, but the tech tree in this game will take hundreds of generations to fully explore. This game is also about family trees. Having a mother who takes care of you as a baby, and hopefully taking care of a baby yourself later in life. And your mother is another player. And your baby is another player. Building something to use in your lifetime, but inevitably realizing that, in the end, what you build is not for YOU, but for your children and all the countless others that will come after you. Proudly using your grandfather's ax, and then passing it on to your own grandchild as the end of your life nears. And looking at each life as a unique story. I was this kid born in this situation, but I eventually grew up. I built a bakery near the wheat fields. Over time, I watched my grandparents and parents grow old and die. I had some kids of my own along the way, but they are grown now... and look at my character now! She's an old woman. What a life passed by in this little hour of mine. After I die, this life will be over and gone forever. I can be born again, but I can never live this unique story again. Everything's changing. I'll be born as a different person in a different place and different time, with another unique story to experience in the next hour...

....Progress Report....
73 natural objects
(latest: Wild Grape Plant)
22 playable characters 2524 human-makeable objects
(latest: Track Door with Cart)
117,755 lines of code

What you get
Immediately after your payment is processed, you will receive an email with an access link. You will then be able to download all of the following DRM-free distributions:
  • Windows build
  • GNU/Linux build (compiled on 32-bit Ubuntu 14.04)
  • Full source code bundle (compile it yourself)
The price also includes downloads of all future updates and a lifetime account on the main game server that I am running.

The source bundle includes the editor and server software, allowing you to set up and run your own server or even leverage the engine to make your own game. See OneLife/documentation in the source bundle for instructions.

You can take a look at the system requirements.

93% Positive Reviews:
Recent Reviews:

Game Crash (566.9 hours on record)
Posted 11 days ago

Game crashes.
Step one: open the game
Step two: Enter email and key
Step Three: Click Login
Step Five: Watch the waiting to be born screen
Step Six: Games quit and closes

layton (10.4 hours on record)
Posted 15 days ago

great game but the group option needs work.

Pan (734.2 hours on record)
Posted 20 days ago

tis a game

michaelmort (591.2 hours on record)
Posted 22 days ago

This game has just gotten fucking better and amazing since it's release in March 2017. Definitely worth your time, AND your money.

The Mushrooms (52.0 hours on record)
Posted 33 days ago

The psycodelic mushrooms are a great feature and weird you out the first time and then confuse you the rest of the time.
My problem is that when you eat one before dying you get the effect for your entire next life and the only way to fix it is to eat another one, and it hurt my brain a lot.

fckbiomerestrictions (392.5 hours on record)
Posted 34 days ago

gingers get oil or get shanked

flower (0 seconds on record)
Posted 36 days ago

koom (6.8 hours on record)
Posted 38 days ago

Its not intuitive but its really sentimental but i really hate the flies that can give you ebola and you die 100% of the time even if your in a city

Gaea (124.2 hours on record)
Posted 39 days ago

Its a game

[More Reviews]
Top Playtime Reviews:

Morti (2,567.0 hours on record)
Posted 20 months ago

I think my time played speaks for itself.

Tarr (2,465.3 hours on record)
Posted 2 months ago

As I've said before I don't mind if people use my account to play but don't be an asshat and change the review. That's just being a dick.

Mirelli (2,021.8 hours on record)
Posted 6 months ago

This used to be one of my favorite games, with my hours as evidence, but I can't say the same now after the new "arc update"; with all the players crammed together and sharing finite resources in a tiny little hell box. Everyone is frustrated by the baby apocalypse and lack of progress. It's a constant scramble for food (if you survive infancy) so things can't really get done anymore. I would only...

Luna (1,722.4 hour on record)
Posted 16 months ago

Great game to play, every life is unique! Sometimes you play with annoying children who wants to stab everyone.. but most of the times you will play with nice people who want to play the game and can learn new people things.

demonicblack (1,587.4 hour on record)
Posted 5 months ago

even tho i dont like the rift the fixes jason is implementing are really nice

Shaivi Bane (1,577.9 hour on record)
Posted 6 months ago

Great game, with weekly updates for only 20 dollars!

person (1,546.9 hour on record)
Posted 14 months ago

Good game, although please fix the naming system.

shampein (1,532.6 hour on record)
Posted 20 months ago

its a fun, simple game, with a complex strategy
lot of drama, lot of bad players, lot of griefers and murderers, so will annoy you a few times but can be so fun, very original concept and jason works on it frequently, each update changes everything but its in a good direction

AAA Pizza (1,495.9 hour on record)
Posted 13 months ago

You happy now Malleria

[More Reviews]

7% Negative Reviews:
Recent Reviews:

Not Recommended
Gabrielle (280.7 hours on record)
Posted 19 days ago

Hey! The fact that you can't put bodies in carts really sucks... Could you change that? Otherwise the game is super fun!

Not Recommended
Julie (171.8 hours on record)
Posted 42 days ago

Why is there a language difference??? I understand that the real world was like that, but really what the ever living fuck. I got killed because one of my children decided to be a racist, thieving asshat.

[More Reviews]
Top Playtime Reviews:

Not Recommended
player8 (1,045.5 hour on record)
Posted 5 months ago

The sword was the most fun thing in the game, even after the shift-click update. People were joining raids and having the best lives they had had in the game while doing so. I loved it and I lead maybe over a hundred wars and raids on towns. Then the rift came, causing the crafting players to riot and grief the life out of it, giving us a moment of freedom when it was lifted. I even made a map in ...

Not Recommended
The_Anabaptist (704.4 hours on record)
Posted 6 months ago

Update to my previous review:

The game in its current state means that you will not get to play. You will be born. There may not be a mother who can feed you and the dozen other babies crying for a teat. Depending on the "arc" being born as an Eve may or may not be available.
You no longer have the choice of playing this game when you want to.

Yes, negative reviews will wake me...

[More Reviews]

[More Artwork...]

Update: Curved Tracks
January 24, 2020


Forum member Wuatduhf made an important discovery: recent changes to the way object patterns work had suddenly made curved cart tracks much more reasonable to implement.

It turns out that I already had the graphics drawn for these curves, and they looked really good back in the day, but I had to scrap them because of the combinatorial explosion that they would entail. For example, north-moving carts already had three "leave" cases (leaving from south ends, north-south tracks, and cross tracks) and three "entering" cases (entering north-south segments, entering north ends, and entering cross tracks). To handle all the combinations, 9 distinct transitions were required for each cart direction, resulting in a total of 36 transitions. That's a lot, but as soon as we add in curves, it blows up even more, with something like 25 transitions needed for each cart direction, or 100 total. That's a lot of transitions to author correctly, and way too much to keep track of along the way, resulting in tons of room for error.
[Read More...]

Fan Art: by Mofobert
September 2, 2019


Mofobert's amazing thread of drawings is here.
[Read More...]

User Story: The Tale of Scott Silverthorn, by MaggieMurdoch
October 30, 2018

this is a tale of one of my last lives, sometimes I live very mundane and uneventful lives but other times I find one that stays with me and makes me think about it...This was one of those lives.

I was born a baby boy to a woman named Samantha Silverthorn in a tiny settlement, as I was born my older brother Lason was visiting, my mother had six children before me and had one after me, surviving to adulthood there was only me, my big brother Lason, my big sister Freyja and and my younger sister Liza. When I was born my mother gave me a single snake skin boot.
[Read More...]

The thinking behind One Hour One Life
How to Deal With A Crisis of Meaning
Bonsai: the Endless Ritual | Extraordinary Rituals | Earth Unplugged
Power of the Market - The Pencil
Primitive Technology: Forge Blower
Last Day Dream
The Game Design Challenge 2011: Bigger Than Jesus Panel at GDC 2011
334 Time Life - Rock A Bye Baby - 1976

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