Bits

 are a currency earned while under the effects of a Booster Cookie and can be spent at Elizabeth in the Community Center for unique, powerful items.

Earn Bits
To earn, players must first acquire a Booster Cookie, either from purchasing from Elizabeth for SkyBlock Gems, or from the Bazaar where its prices depend on supply and demand. After consuming the cookie, the player's pool of available will increase by 4,800, but this is amplified with an increased Fame level. When a booster cookie is activated, the player is awarded 250 (multiplied by their bit multiplier), repeated every half hour of playtime. It takes 10 hours of idle playtime for a player to earn the full potential of a cookie.

There is also the possibility to earn by slaying Bosses or doing dungeons. In the recent Dwarven Mines update, they can also be earned by participating in active events. They also subtract from the cookie pool:

Spend Bits
can be spent at Elizabeth in the Community Center to buy a variety of powerful items, including:


 * God Potion - Gives all positive potion effects for 24 hours.
 * Kat Flower - Speeds up upgrading time of pets by Kat by 24 hours.
 * Heat Core - Used to upgrade Enchanted Lava Bucket to Magma Bucket, and Magma Buckets to Plasma Bucket.
 * Hyper Catalyst Upgrade - Catalyst upgrade that lasts 6 hours and boost output by 4x.
 * Ultimate Carrot Candy - Upgrade of Superb Carrot Candy which gives 1,000,000 pet experience.
 * Colossal Experience Bottle - Upgrade of Titanic Experience bottles, gives 2x the amount of experience of an Titanic experience bottle.
 * Jumbo Backpack - Upgrade of Greater Backpack, can hold 54 slots.
 * Minion Storage X-Pender - Upgrade of Large Minion Chest, can hold up to 27 slots.
 * Hologram - Puts floating text on your island.
 * Dungeon Sack - Holds 20,160 Spirit Leaps, Traps, Inflatable Jerries and Decoys.
 * Enchanted Books - Special Echanted Books with "Stacking Enchants". They become stronger the more you use the item.
 * Expertise - Grants 2% Fishing exp and 0.5% Seacreature Chance per level, with a starting value of 1% Seacreature Chance.
 * Compact - Grants 1% Mining exp and a small chance to drop an enchanted item per level, with a starting value of 0.2% chance to drop an enchanted item.
 * Cultivating - Grants 1% Farming exp and 1 Farming Fortune per level.
 * Enrichments - Add stat bonuses to talisman.
 * Builder's Wand - A tool that extends an entire block face by 1 block and can also hold blocks, up to 54 stacks.
 * Bits Talisman - Grants a 10% chance to gain double bits whenever you get bits.
 * Block Zapper - A tool that breaks all blocks you right click on, as long as they are connected and are the same type.
 * Rune Sack - A sack that holds all runes, up to 64 of each rune type
 * Kismet Feather - An item that lets you reroll a dungeon chest. This item can only be used 1 time per dungeon run.
 * Autopet Rules 2-Pack - An item that when consumed, adds +2 rules to your Autopet.

can also be spent for city projects at higher contribution tiers. They can also be spent on the Experimentation Table in order to skip the cooldown. This can be used three times a day and requires more bits and XP levels every time it is activated.

History
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