Skip to main content
depositing into a launch is one transaction. you send BNB to the launch’s vault, and you wait for one of two outcomes: tokens (LAUNCHED) or your BNB back plus a bonus (REFUND).
1

find a launch

browse open launches on waifu.fun. every launch shows its tier, cap, current total deposited, and close window. pick one.
2

connect your wallet

metamask, rabby, or any BSC-compatible wallet. you will be on chain id 56 (BSC mainnet).
3

deposit BNB

click “deposit.” enter the amount. confirm the transaction. you are calling LaunchVault.deposit() with msg.value equal to your amount.your deposit is recorded as depositors[you].deposited += amount and the vault total goes up by the same. you do not get tokens yet. tokens come after the bundle executes.
4

wait for the cap or the window

the launch either fills (total >= cap) and the bundle bot picks it up, or the window expires (closeTimestamp reached) with the cap not met and the vault goes to REFUND.you do not need to be online for either outcome. the contracts handle it.
5

claim or refund

if the launch hit LAUNCHED, call claim() on the vault. you receive tokens pro-rata. if vesting is enabled, you get 50% at TGE and 50% linear over 24 hours, so you may need to claim more than once.if the launch hit REFUND, call refund() on the vault. you receive your principal back plus a pro-rata bonus from the bonus pool (if there is one).

​
what you should know before depositing

  • your BNB is locked until the launch resolves. you can withdraw before the window closes (withdraw()), but once the vault transitions to CLOSED or LAUNCHED, deposits are frozen until claim or refund.
  • the launch can refund. under-subscription, bundle failure after retries, or admin emergency stop all trigger refund. read refund safety for the full list.
  • tokens can go to zero. even a successful launch is not a guarantee of price. you are buying a token. tokens can drop 90% in an hour. read risks.
  • the platform cannot drain the vault. the vault contract is immutable per launch. the only privileged action the platform owner has is adminEnableRefund, which transitions the vault to REFUND and returns your BNB.

​
the three windows

  • OPEN. deposits accepted. you can withdraw() to back out before close.
  • CLOSED. deposits frozen. the bundle bot has the launch in its queue. if the bundle succeeds you transition to LAUNCHED. if it fails after three retries, you go to REFUND.
  • LAUNCHED or REFUND. terminal. claim tokens or refund BNB.

​
quick checks before you deposit

  • does the cap make sense for the project? a 160 BNB cap with no community is going to refund.
  • does the metadata match the social channels? if twitter does not exist or is brand-new, that is a yellow flag.
  • is the vault address the same one announced by the creator? always verify the on-chain address.