| Bonfire |
First tab you start out with. This tab is where all your Buildings are kept and can be built from. You start out with only 'gather catnip' as an option. |
| Outpost |
Usually the second tab you get, it unlocks with your first citizen (whether kitten or zebra). From the village tab you can assign Jobs, and later you can send out hunters and look at census details, too. There is a table in kittens that shows what the tab will read at certain populations. |
| Science |
This is where all of your Technologies, Policies, and Metaphysics are stored and can be researched from. Unlocks with science. |
| Workshop |
Here a number of upgrades can be researched and several different resources can be turned into other materials such as wooden beams to help build more complicated structures. |
| Trade |
Unlocked with the Trading Post. Here you can search out other races to trade with, or organize trades with races you've already discovered. (Note: many races have requirements for unlocking them). |
| Religion |
Unlocked with ?. Here you can sacrifice Unicorns, worship the sun with Faith and get access to Cryptotheology with Relics. |
| Space |
Unlocked with Rocketry. Used to build rockets and send missions into space. |
| Time |
Unlocks with Calendar. Used to manipulate time. |
| Challenges |
Unlocked with Adjustment Bureau. Used to start Challenges. |
| Achievements |
Unlockable awards for various tasks. Some are very easy to get, while others are a bit more complex. |
| Stats |
A tab that shows a few statistics such as resets made, total paragon and others. |