# Reward Boost

Saisen offers **boosted rewards** for players who hold partner project tokens. This mechanism amplifies your SAISN rewards based on how many different eligible tokens you own — not how much of each.

#### 🧪 Eligible Tokens

* **MCHC (**[0x5B1CC635E524cAbb63a581c050C895534755F297](https://explorer.oasys.games/token/0x5B1CC635E524cAbb63a581c050C895534755F297?tab=holders)**)**
* **BPC (**[0x9A340A0dE81B23eCd37ba9c4845dff5850A7e7a4](https://explorer.oasys.games/token/0x9A340A0dE81B23eCd37ba9c4845dff5850A7e7a4)**)**
* **TORA (**[0xe2875275d67DA26C44F4C26F7b16820F40F54cf0](https://explorer.oasys.games/token/0xe2875275d67DA26C44F4C26F7b16820F40F54cf0)**)**
* **OASSY (**[0x254e85845fae520dD9dae6c30dca9829B3bDB30c](https://explorer.oasys.games/address/0x254e85845fae520dD9dae6c30dca9829B3bDB30c)**)**
* **SGC (**[0x5a2941b1B328ADDe8193Cb8b0100787D7cbA2F9a](https://explorer.oasys.games/token/0x5a2941b1B328ADDe8193Cb8b0100787D7cbA2F9a)**)**
* **MSM (**[0xd11E0F63B04868567c297A3119e491707DB19E4e](https://explorer.oasys.games/token/0xd11E0F63B04868567c297A3119e491707DB19E4e)**)**
* **Z (**[0xC683DA627fF9fD56740C72A703528861c33d3B3a](https://explorer.oasys.games/token/0xC683DA627fF9fD56740C72A703528861c33d3B3a)**)**

{% hint style="info" %}
Your token balance must be more than 1 (Decimals are not counted).
{% endhint %}

#### 🧮 Boost Formula

Saisen uses a **concave boost curve** capped at **+15%**. Holding more *unique* tokens increases your reward multiplier:

```
boostPercent = 15% × T / (T + k)
```

Where `T` = number of unique eligible tokens held, and `k` is a curve factor that limits exponential scaling (set at 3.6).

<table><thead><tr><th width="220.859375">No. of token types held</th><th>0</th><th>1</th><th>2</th><th>3</th><th>4</th><th>5</th><th>6</th><th>7</th><th>...</th></tr></thead><tbody><tr><td>Weighting Boost</td><td>0%</td><td>3.26%</td><td>5.35%</td><td>6.81%</td><td>7.89%</td><td>8.72%</td><td>9.37%</td><td>9.90%</td><td>...</td></tr></tbody></table>

> 🔹 Holding multiple of the *same* token does not increase your boost.\
> 🔹 Holding new token types always increases your multiplier — but the curve flattens out over time.

This structure rewards ecosystem participants while preventing whales from dominating rewards.