# Gems

Gems are items that can be mounted in a Vehicle’s Gem Socket to boost its Stats. 

Typically, you can mount up to four Gems on a Vehicle. Each Vehicle has Gem Sockets of different colors. If you acquire a Plus-Marked Vehicle through Evolution, you can mount an additional Gem. For more information about the Plus Mark, please visit the [\[Evolution page\]](https://docs.perplay.io/perplay-whitepaper/game-fi/workshop/evolution).

There are eight types of Gems, categorized into four colors. You can only place a Gem in a Socket of the corresponding color.

<table><thead><tr><th width="124">Name</th><th width="105">Color</th><th>Effect When Mounted</th></tr></thead><tbody><tr><td><mark style="color:red;">Speed(+)</mark></td><td><mark style="color:red;">Red</mark></td><td>The Vehicle’s Speed is increased by N.</td></tr><tr><td><mark style="color:red;">Speed(%)</mark></td><td><mark style="color:red;">Red</mark></td><td>The Vehicle’s Speed is increased by N% of its Base Speed.</td></tr><tr><td><mark style="color:green;">Luck(+)</mark></td><td><mark style="color:green;">Green</mark></td><td>The Vehicle’s Luck is increased by N.</td></tr><tr><td><mark style="color:green;">Luck(%)</mark></td><td><mark style="color:green;">Green</mark></td><td>The Vehicle’s Luck is increased by N% of its Base Luck.</td></tr><tr><td><mark style="color:yellow;">Yellow(+)</mark></td><td><mark style="color:yellow;">Yellow</mark></td><td>The Vehicle’s Energy is increased by N.</td></tr><tr><td><mark style="color:yellow;">Yellow(%)</mark></td><td><mark style="color:yellow;">Yellow</mark></td><td>The Vehicle’s Energy is increased by N% of its Base Energy.</td></tr><tr><td><mark style="color:blue;">Blue(+)</mark></td><td><mark style="color:blue;">Blue</mark></td><td>The Vehicle’s Durability is increased by N.</td></tr><tr><td><mark style="color:blue;">Blue(%)</mark></td><td><mark style="color:blue;">Blue</mark></td><td>The Vehicle’s Durability is increased by N% of its Base Durability.</td></tr></tbody></table>

1\) (+)type Gems

Mounting a (+)type Gem increases the corresponding Stat of the Vehicle by a set value. As these Gems consistently increase the same number, their effects remain constant regardless of the Vehicle’s original quality.

| Gem Level | Value (N) |
| --------- | --------- |
| 1         | 8         |
| 2         | 16        |
| 3         | 24        |
| 4         | 32        |
| 5         | 40        |
| 6         | 48        |
| 7         | 60        |
| 8         | 72        |
| 9         | 84        |
| 10        | 96        |

* Ex) If you mount a level 1 Speed (+) Gem on a Vehicle, its Speed increases by 8.

2\) (%)type Gems

Mounting a (%)type Gem increases the corresponding Bast Stat of the Vehicle by a fixed percentage. Note that the percentage increase does not consider the Stats enhanced by Stat Point distribution. As a result, Vehicles with higher Base Stats benefit more from (%)type Gems.

| Gem Level | Value (N%) |
| --------- | ---------- |
| 1         | 30%        |
| 2         | 60%        |
| 3         | 90%        |
| 4         | 120%       |
| 5         | 150%       |
| 6         | 180%       |
| 7         | 220%       |
| 8         | 260%       |
| 9         | 300%       |
| 10        | 340%       |

* Ex) If you mount a level 1 Speed (%) Gem on a Vehicle with Base Speed 50, its Speed increases by 15 (which is 30% of 50).

3\) Gem Upgrade (That part contains unfixed numbers. Success rate and Upgrade Booster is under reviewing until release date of Pre-OBT)

By combining three Gems of the same color, effect, and level, you can attempt to upgrade them. A successful Upgrade yield a Gem of the next level.

* Ex) if you upgrade three level 1 Speed (%) Gems and succeed, you obtain a level 2 Speed (%) Gem. If the Upgrade fails, the three Material Gems are lost.

The success rate varies depending on the level of the gem being upgraded. Adding a regular upgrade booster item increases the success rate by 20%, while adding a super upgrade booster item increases it by 50%. You cannot use both the regular and super booster items at the same time — only one can be used.

The table below provides the Upgrade success rates without a Booster and the required token costs.

| Gem Level | Success Rate | XPER Cost | PER Cost |
| --------- | ------------ | --------- | -------- |
| 1 → 2     | 70%          | 80        | 8        |
| 2 → 3     | 65%          | 160       | 40       |
| 3 → 4     | 60%          | 320       | 80       |
| 4 → 5     | 55%          | 480       | 160      |
| 5 → 6     | 50%          | 640       | 240      |
| 6 → 7     | 45%          | 800       | 400      |
| 7 → 8     | 40%          | 1,600     | 800      |
| 8 → 9     | 35%          | 2,400     | 1,200    |
| 9 → 10    | 30%          | 3,200     | 1,600    |

4\) How to earn Gems

| Method                | Description                                                                                                                                           |
| --------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------- |
| Opening a Special Box | You may find a Gem inside s Special Box; higher-level Special Boxes are more likely to contain high-level Gems.                                       |
| Upgrading Gems        | By spending three Gems of the same color, effect, and level, you can attempt to upgrade them. If successful, you earn a Gem of the next higher level. |

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