This article explains how to earn $NIGHT tokens in Midnight Network’s “Scavenger Mine” – a 21-day event where anybody can earn $NIGHT (Midnight blockchain’s utility token) simply by sharing their device’s processing power to solve cryptographic challenges (also known as ‘mining’).


The easiest (and most profitable) way to participate is to use the Scavenger Mine feature inside NUFI wallet:

- Faster mining: NUFI leverages your CPU cores to mine faster

- Multi-account: Mine with multiple accounts simultaneously to earn more $NIGHT

- Offline for a while? NUFI lets you solve any challenges you missed in the current cycle

- Mobile-friendly: Participate using your mobile device

- Hardware wallets supported: Ledger, Trezor, Keystone and OneKey devices



TABLE OF CONTENTS

How to participate in Midnight’s Scavenger Mine


Step 1: Prepare your Cardano account(s) in NUFI wallet


1) Open NuFi’s web wallet here (no download needed; works in mobile browsers)
NUFI’s browser extension wallet will support Scavenger Mine in the coming days.

  • Create a new wallet; or
  • Pair a hardware wallet (Ledger, Trezor, Keystone and OneKey devices supported); or
  • Restore your Cardano accounts using a 12, 15 or 24-word seed/recovery phrase.

2) Choose a profile name and password

3) Enable Cardano blockchain; hardware wallet users click ‘Add Account’ and follow instructions to add your device's Cardano account(s)


Step 2: Register and start mining


Click 'Airdrop' on the left side of your wallet. You’ll see the Cardano accounts you’ve added to your wallet. Multiple accounts can solve different cryptographic challenges simultaneously to maximize the $NIGHT you can earn.


4) Click Register; an unused address belonging to the account will automatically be selected as the destination for your earned $NIGHT tokens. Click Sign to complete registration.


Important: when you Sign, you are not signing a transaction and there is no on-chain effect; instead, you sign a message that proves wallet ownership, confirms the destination address, and confirms your adherence to Midnight’s terms and conditions.


5) Click ‘Start Mining’; repeat steps 4 and 5 for each account you want to mine with.


Important: your earned $NIGHT balance updates every 24 hours. Earned $NIGHT is not transferred into your Cardano account yet; the tokens can be transferred into your wallet when the Scavenger Mine phase ends and the Redemption Period begins.


What happens when I start mining?


When you start mining, you’ll see the status ‘Mining’ next to your account. This means that your device’s computing power is being used to solve cryptographic challenges. You don’t need to do anything – just keep the Scavenger Mine screen open. A record of your solved challenges is submitted to Midnight’s servers automatically.


Mining = Earning

The Scavenger Mine runs for 21 days (from October 29th to November 19th 2025) and every 24 hours is its own cycle. In each 24-hour cycle, a new challenge becomes available on the hour, every hour. Your device will begin solving each new challenge automatically (as long as one or more accounts is ‘Mining’ and the Scavenger Mine screen is open).


In each 24-hour cycle, approximately 30,000,000 $NIGHT tokens will be distributed to participants, proportional to how many challenges they solved in that cycle. Therefore, the more challenges you solve, the more $NIGHT you earn.


While you’re mining, the Scavenger Mine screen shows you:

  • how many solutions you’ve found in your current session. A session is an uninterrupted streak and if you close the Scavenger Mine screen, or close NUFI wallet, or go offline, you’ll end your current session.
  • how many challenges are queued up for you to solve; this includes challenges from the current cycle that you missed earlier.
  • how many CPU threads you’re using and how many hashes you’ve computed.
  • when the next challenge becomes available (i.e. when the next hour begins).


What happens when the Scavenger Mine ends?


When the Scavenger Mine ends, the Redemption Period will begin. During this time, you can transfer earned $NIGHT tokens into your wallet. Follow NUFI wallet on X to know when this starts.


FAQs


Q: Do I need ADA in my Cardano account to start mining?

A: No; no ADA is needed in your account in order to mine.


Q: How many accounts can I use simultaneously to mine/solve challenges?

A: There’s no limit to how many Cardano accounts you can add to your wallet and mine with, but bear in mind:
- you can’t add a new Cardano account until the previous account has been used. To use an account, transfer 1 ADA into it (you don’t need to transact with the account: simply receiving ADA into it is sufficient).

- adding many Cardano accounts to one wallet profile may impact performance; we recommend limiting the number of Cardano accounts to 10 accounts per profile. If you want to use more than 10 Cardano accounts, we recommend creating a new wallet with a different browser profile, different browser, or different device.


Q: Do I need to have participated in Glacier Drop to take part?

A: No; prior participation in Midnight’s airdrop is not required to take part in Scavenger Mine.


Q: What happens if I close the Scavenger Mine screen?

A: If you close the Scavenger Mine screen, you stop mining. Completed challenges are not lost because these are recorded and submitted to Midnight automatically upon completion. You can resume mining immediately by opening the screen again.


Q: Can I use my mobile device to mine?

A: Yes; NUFI’s web wallet can be accessed using any browser on mobile devices.


Q: I restored my existing Cardano account but I don’t see it in my wallet. Why?

A: NUFI may have added a different account than the one you used in other wallet interfaces. Click Add Account (on Accounts or Assets screen), then follow instructions to view other accounts that can be added.


Q: I was offline for a few hours and missed challenges; will I still be able to solve them?

A: Yes; NuFi allows you to solve older challenges as long as they are still valid (in the current 24-hour cycle). NuFi will be able to find and submit solutions for them.


Where can I get help?


Open a ticket in NUFI’s Discord server here or create a support ticket here to get help by email.