> For the complete documentation index, see [llms.txt](https://bloodsharks-nft.gitbook.io/chi-siamo/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://bloodsharks-nft.gitbook.io/chi-siamo/shark_paper_eng/our-app/rubies-rub.md).

# RUBIES (RUB)

Rubies are one of the fundamental pillars of the Blood Sharks ecosystem!

### 🩸 Rubies (`RUB`)

<figure><img src="https://content.gitbook.com/content/jU9SIcWWfOKswzvV8adR/blobs/W8DM1bMrWYjhjqhKV2F8/rubies_def.png" alt=""><figcaption><p>Rubies</p></figcaption></figure>

They are not an external cryptocurrency nor a tradeable market asset: they are an **internal gamified asset**, designed exclusively to reward **active participation** and support the **meritocratic growth** of users within the platform.\
\
The ratio is **1:1** with the `$USDC`.

They are also the measure of your activity level, influence and progress in the network: the more `RUB` you accumulate, the higher you climb in the leaderboard and the more advantages you unlock.

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### **❓ How to earn rubies**

There are several ways to accumulate rubies within the ecosystem:

* **Marketplace:** purchase them directly from the marketplace using your `$USDC`
* **Missions:** by completing weekly and monthly goals (social, community and performance)
* **Games:** through the Wheel of Fortune in Ruby Mode, prizes from the Slot Machine and rewards from Treasury Hunter
* **Ruby Farm:** by activating the farm (**50** `$USDC` one-time + deposit from **100** to **1,000** `$USDC`) to generate from **0.04 to 0.24** `RUB` per day automatically
* **Failed fusion:** in case of a failed fusion, the Refund Wheel can return up to **200** `RUB`
* **Bonuses and prizes:** mystery boxes, special events, official giveaways and leaderboards

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### **🧭 What rubies are used for**

`RUB` are the key to accessing exclusive functions, tools and advantages within the ecosystem:

**⛏️ Miner purchase**\
You can buy new miners directly in the app marketplace.

**🔧 Miner upgrades**\
Each miner can be upgraded up to **10** levels with a **+5% output** increase per level (max **+50%**). Costs range from **20** `RUB` (LVL 1) to **450** `RUB` (LVL 10).

**🔀 Miner fusion**\
Combining three miners of the same rarity requires a ruby fee:

* 3× Common → Uncommon: **25** `RUB`
* 3× Uncommon → Rare: **60** `RUB`
* 3× Rare → Epic: **150** `RUB`
* 3× Epic → Legendary: **400** `RUB`

**🔋 Miner reactivation**\
When a miner wears out (Common: **365 days,** Uncommon: **450 days,** Rare: **600 days,** Epic: **900 days**), reactivation costs **75** `RUB` and preserves all applied upgrades.

**🪏 Treasury Hunter**\
The excavator purchase, the tool required to participate in Treasury Hunter, costs **50** `RUB` (one-time).

**🏆 Ruby Leaderboard**\
The real-time `RUB` balance determines your position in the Ruby Leaderboard. The **Top 10** are periodically rewarded with `$USDC`, exclusive NFTs, gold necklaces and additional bonuses.

**🔓 Access to prizes and features**

* Mystery boxes and exclusive bonuses
* Participation in limited events and official giveaways
* Priority access to new games and features in development
* Hidden win probability bonuses in internal games
* Chance to be selected as an official Blood Sharks ambassador

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### **📊 Rubies and the rank system**

`RUB` do not directly determine **rank:** rank depends on the number of active referrals. However, accumulating a high balance positions you at the top of the Ruby Leaderboard, which carries its own independent rewards. Furthermore, the activities that generate `RUB` (missions, games, farm) often overlap with those that accelerate network growth.

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{% hint style="danger" icon="gem" %}
The more `RUB` you hold and use strategically, the more visibility, prestige and concrete advantages you will gain within the Blood Sharks system.
{% endhint %}

***