# Discovery

## Overview

**Discovery** is a key adventure type in Derpetonia, similar to **Research from Season 1**. Through Discovery, players can obtain **Tomes**, powerful artifacts used to initiate **rituals** that summon Vamps.

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### ⏳ How Discovery Works

* Discovery takes **24 hours** to complete.
* On completion, players receive **one tome**.
* Players can only hold **one tome at a time**.
* To start a new Discovery, the current tome must be:
  * **Used** (to perform a ritual), or
  * **Discarded**.

> **Note:** Tomes expire after **14 days**, so plan your rituals wisely!

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### 📜 About Tomes

Tomes are magical items used to **summon Vamp NFTs** via rituals.

* There are **7 types of tomes**, each with its own **rarity** and **ritual count**.
* A tome’s **rarity** determines which **ranks** of Vamps it can create.
* Tome **supply** is limited by the number of **rituals** that can be performed with it.
* As rituals are completed, the tome’s availability **decreases**, not based on how many are found, but how many are used.

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### 📊 Tome Breakdown

| Tome    | Rarity    | Drop Rate | Rituals | Possible Vamp Ranks Created        |
| ------- | --------- | --------- | ------- | ---------------------------------- |
| Alpha   | Common    | 22.86%    | 800     | 630 Rank 1, 120 Rank 2, 50 Rank 3  |
| Beta    | Uncommon  | 20%       | 700     | 450 Rank 1, 200 Rank 2, 50 Rank 3  |
| Gamma   | Scarce    | 17.14%    | 600     | 276 R1, 200 R2, 99 R3, 25 R4       |
| Delta   | Rare      | 14.29%    | 500     | 115 R1, 150 R2, 190 R3, 45 R4      |
| Epsilon | Epic      | 11.43%    | 400     | 16 R1, 68 R2, 216 R3, 85 R4, 10 R5 |
| Zeta    | Mystical  | 8.57%     | 300     | 9 R1, 40 R2, 126 R3, 115 R4, 10 R5 |
| Omega   | Legendary | 5.71%     | 200     | 0 R1, 5 R2, 76 R3, 109 R4, 10 R5   |

> Each tome’s drop rate reflects how **rare** and **valuable** it is.

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### 🧨 When Tomes Become Useless

A tome becomes **useless** when all its **associated Vamp NFTs** have been minted.

* It is then **removed** from the pool of discoverable tomes.
* Drop rates for the remaining tomes are **rebalanced** to maintain fairness.

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### 🔁 Ongoing Adjustments

As the adventure progresses:

* Removed tomes will be excluded from Discovery.
* Drop rates of remaining tomes will **dynamically rebalance**.
* Ensures fairness and encourages players to engage with **still-available rituals**.

> 🎯 This dynamic system keeps gameplay fresh and focused on what’s still available, while preserving the rarity and pacing of vamp creation.

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