# Lemon Jet: a crypto crash game on Base with verifiable rounds

Explore Lemon Jet's crash-style game on Base: choose an LJT multiplier before the round, verify the result, and understand payouts and costs.

Source: https://lemonjet.xyz/blog/crypto-crash-game-on-base
Published: 2026-09-05

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A small multiplier feels close enough to reach. A larger one makes the same
stake worth more if the round wins. Choosing between them is the appeal of a
crypto crash game, and the decision at the centre of Lemon Jet.

Lemon Jet brings that multiplier experience to Base with LJT bets, wallet-signed
transactions and results resolved through Chainlink VRF. It uses a fixed-target
version of the format: you choose the multiplier before launching the round.
There is no live cash-out decision once that prediction has been submitted.

Here is what that means in practice, from the number you choose to the tokens
that arrive after a win.

## What is a crypto crash game?

Crash games pair a stake with a rising multiplier and an uncertain stopping
point. In a live cash-out format, the player can choose when to leave before
the crash. Some games also let the player set a target in advance; the exact
controls and payout rules depend on the game.

In Lemon Jet, the choice happens before the flight. You submit a stake and
a target multiplier, and the contract determines whether that prediction
wins. The animation presents the round; reacting faster to the animation
does not change the committed target or its outcome.

## How a Lemon Jet round works

The two numbers to choose are the **LJT stake** and the **target multiplier**.

Suppose you commit 10 LJT at 2x. A winning round returns 20 LJT in total,
including the original 10 LJT stake. A losing round returns no LJT from that
bet. The network and randomness-request costs are separate from those
amounts.

The current interface lets you choose targets from 1.1x to 5,000x. A higher
target has a lower chance of success, and the maximum stake also depends on
how much payout capacity the vault has available. A large multiplier on the
screen is not permission to place an unlimited bet.

The sequence is:

1. Connect a wallet and select the Base network.
2. Choose the stake and target multiplier.
3. Approve LJT spending if the game needs a token allowance.
4. Review and sign the game transaction.
5. Wait for the randomness response and on-chain settlement.

If this is your first visit, the [first prediction guide](/blog/first-prediction)
covers the wallet flow in more detail.

## What makes the game on-chain?

The meaningful part is where the result is decided. The game contract records
the bet and requests randomness. Once the verified response arrives, the
contract applies the settlement rules and pays any winning amount.

You can inspect the prediction and its eventual settlement through BaseScan.
A successful bet transaction means the bet was accepted; it can still be
waiting for its random outcome. The
[transaction status guide](/blog/lemon-jet-transaction-status) explains that
distinction.

The website does not need to remain open for the contract to settle a round.
What you see in the browser is a view of the game, while its records and
token movements live on Base.

## What does provably fair mean here?

Lemon Jet uses Chainlink VRF, which supplies randomness together with a
cryptographic proof. The verification process checks that proof before the
random value is accepted. You can read the mechanism in the
[Chainlink VRF documentation](https://docs.chain.link/vrf).

This makes the randomness independently verifiable. It does not eliminate
the game's house edge or promise that a particular bet will win.

The current contract uses a nominal 1% house-edge parameter, with integer
arithmetic determining the exact chance at each target. Read
[what the house edge means](/blog/house-edge) before treating a displayed
probability as an expected result for a short session.

Previous flights do not reveal the next VRF value. A sequence of low outcomes
does not make a high multiplier due.

## Why Lemon Jet uses LJT and Base

LJT is the token used for stakes and winning payouts. It also funds the vault
that backs those payouts when holders deposit liquidity. The
[LJT utility guide](/blog/what-is-ljt-used-for) explains those two sides of
the token's role.

Base is an Ethereum Layer 2 network. It provides the environment where the
contracts execute and transactions can be inspected. In the standard wallet
flow, you need ETH on Base for gas and the game's randomness request, in
addition to LJT for the stake.

This is why a wallet with LJT can still be unable to start a round. The
[ETH on Base guide](/blog/eth-on-base-for-ljt) helps you check both balances.

## Compare the rules before you choose a game

The word "crash" describes a family of experiences. These details tell you
what you are actually playing.

| Question | Lemon Jet's current format |
| --- | --- |
| When do I choose the multiplier? | Before submitting the round. |
| Can I cash out during the flight? | There is no live cash-out action for the committed prediction. |
| What do I stake and receive? | LJT on Base. |
| What resolves the outcome? | The game contract using Chainlink VRF randomness. |
| Where can I check the result? | The round's on-chain records and settlement transactions. |
| Is every round profitable? | No. An unsuccessful prediction loses its full stake. |

The [Lemon Jet whitepaper](/blog/lemon-jet-whitepaper) brings the game rules,
vault economics and token mechanics together in one document.

## FAQ

### Is Lemon Jet a crash game?

Lemon Jet is a crash-style crypto multiplier game. Its current format uses
a target selected before the round, rather than an interactive cash-out
button during the flight.

### Which blockchain does Lemon Jet run on?

The current game and LJT vault run on Base. Bets use LJT, while the standard
wallet flow uses ETH on Base for network gas and randomness-request costs.

### What is the maximum multiplier?

The current interface and deployed game support targets up to 5,000x.
The amount you can stake also depends on contract limits and the pool's
available payout capacity.

### Does a 2x win mean 2x profit?

A 2x winning payout is twice the stake in total. On a 10 LJT bet, that is
20 LJT returned, or a 10 LJT gain before separate transaction costs.

### Can a crash-game strategy predict the next round?

Past results do not provide the next verified random value. Changing stakes
or multipliers changes the size and probability of possible outcomes; it
does not remove the house edge.

## Explore Lemon Jet

[Open the game](/app) to inspect its controls and choose whether its format
suits you. Read the [Terms of Service](/terms), check your transaction, and
set a spending limit before playing. The game is for eligible adults and
should be treated as entertainment.
