> ## Documentation Index
> Fetch the complete documentation index at: https://docs.archr.win/llms.txt
> Use this file to discover all available pages before exploring further.

# Airdrop Mode

> Reserve 30% or 60% of a new coin's supply for holders of an existing Robinhood Chain coin, distributed automatically after launch.

Airdrop Mode is an optional setting on the [site launch form](/getting-started/first-launch-site). When you turn it on, part of your new coin's supply is set aside for the holders of another Robinhood Chain coin you choose (the **source coin**), and distributed to them pro-rata after your coin goes live. The rest of the supply funds the [locked liquidity](/launch/overview#what-a-launch-produces) exactly like a normal launch.

It is a way to launch into an existing community: pick a coin whose holders you want to reach, and every eligible holder of that coin receives a share of yours.

## What you choose

On the launch form, toggle **Airdrop Mode** and pick one of two reserved shares:

| Reserve | Goes to source holders | Goes to the locked LP |
| ------- | ---------------------- | --------------------- |
| **30%** | 300,000,000 coins      | 700,000,000 coins     |
| **60%** | 600,000,000 coins      | 400,000,000 coins     |

Then paste the address of the source coin. A live preview shows the source coin's symbol and how many holders are eligible, so you know the reach before you launch.

The reserved share is enforced on-chain: it is always exactly 30% or 60% of the fixed 1,000,000,000 supply, so the split cannot be tampered with after the fact.

## Who is eligible

Eligibility is a snapshot taken at the block your coin launches. A wallet qualifies if it holds at least **\$10 worth** of the source coin at that block, priced from the source coin's Uniswap V3 pool and the live [Chainlink ETH/USD feed](https://docs.robinhood.com/chain/oracles-and-price-feeds).

A few addresses are always excluded so the airdrop reaches real holders:

* The zero address and the standard burn address.
* The source coin's own contract.
* The source coin's liquidity pools and the position manager that holds them.

Every remaining holder above the \$10 floor receives a share proportional to how much of the source coin they hold. Holding twice as much of the source means receiving twice the share.

## How it is distributed

The launch transaction sends the reserved share into the [`AirdropDistributor`](/network/contracts#airdropdistributor) contract in the same transaction that creates your coin and its pool. Distribution to eligible holders happens automatically over the following minutes, in batches, until every eligible wallet has been paid.

You can follow the progress on your coin's page, which shows the source coin, the snapshot block, and how many holders have been paid so far.

## What buyers see

The portion of supply that is not reserved funds a single-sided sell wall in the locked V3 pool, the same permanently-locked shape as a [normal launch](/launch/overview#what-a-launch-produces). The sell wall is sized so it holds the same ETH depth of liquidity as a launch without Airdrop Mode, so buyers trade against the same pool shape either way.

## Choosing a source coin

The preview will only let you launch against a source coin that can be priced and snapshotted:

* It must be a standard ERC-20 on Robinhood Chain.
* It must have a Uniswap V3 pool against WETH with enough liquidity to price it.
* It must have at least one holder above the \$10 floor.

If the preview shows an error (no pool, pool too shallow, or no eligible holders), pick a different source coin. Coins with non-standard transfer behavior (fee-on-transfer or rebasing) are not supported as sources.

## Availability

Airdrop Mode is available on the [site launch path](/getting-started/first-launch-site) only. Reddit and X `!deploy` launches produce a standard coin without a reserved airdrop.

## Cost

Airdrop Mode costs slightly more gas at launch than a plain launch, because the launch transaction also moves the reserved share into the distributor. The distribution afterward is handled for you. There is no additional platform fee. See [launch overview → cost](/launch/overview#cost-to-launch) for the baseline.