Pre-market airdrops refer to the distribution of tokens or cryptocurrencies to early adopters or investors before the official launch of a project. They are often designed to reward community members, increase awareness, and promote engagement with the project. Below is a brief overview of each project mentioned:

1. XP: #xp might refer to a cryptocurrency project that offers utility or governance tokens. These projects often aim to reward early participants through airdrops based on their activities.

2. BABYLON: #Babylon could be related to DeFi (Decentralized Finance) or blockchain projects that focus on asset management or investment strategies. Airdrops might target users of similar platforms to encourage participation.

3. MAJOR: The specifics of this project are unclear, but it might be a gaming or NFT (Non-Fungible Token) platform where users receive tokens as part of early user engagement or community involvement.#Major

4. FARCASTER: #Farcaster is a decentralized social network protocol. Airdrops could be used to incentivize early adopters, developers, or participants who contribute to building the ecosystem.

5. LINEA: #Linea is potentially associated with Layer 2 scaling solutions for blockchain platforms like Ethereum. Airdrops might be directed toward those who have used Layer 2 solutions or provided liquidity.

6. BULLX: #BULLX could be linked to trading or DeFi platforms, with airdrops targeting active traders or liquidity providers to grow their user base.

7. KILO: Projects like #KILO may focus on supply chain, logistics, or tokenized assets. Airdrops are typically used to onboard businesses or individuals interested in these areas.

8. ZRC: #ZRC could refer to a token standard or a project within a specific blockchain ecosystem like Zilliqa. Airdrops would likely be directed toward users familiar with that ecosystem.

9. FUEL: #Fuel is known to be an Ethereum Layer 2 scaling solution, with a focus on enhancing transaction throughput. Early adopters of similar technologies might be targeted in airdrop campaigns.

10. KEP: The #KEP token's details are not well-known, but it might be tied to a specific DeFi or Web3 platform, using airdrops to engage with potential investors or developers.

11. BLUM: #BLUM could be related to eco-friendly blockchain initiatives or sustainability-focused projects. Airdrops might reward community members who support green technology and innovations.

12. PUFFER: This could be an NFT or gaming project, where airdrops are used to distribute unique tokens or digital assets to early backers or players in the ecosystem.

13. SWELL: #Swell likely pertains to a liquidity or DeFi protocol where airdrops are used to attract liquidity providers or participants in staking and farming activities.

For specific details regarding these projects and their pre-market airdrops, it's best to follow their official announcements on social media platforms, project websites, and cryptocurrency forums like Twitter, Discord, or Telegram.