# Sphere upgrading

Each new player has level 1 on each sphere. Level number - quantity of tools of the same sphere that can mine resources at the same time.

For example, if you upgrade the OIL sphere to level 2, it means that 2 oil tools can work in parallel.

Prices for upgrading are the same for each sphere. OIL sphere upgrade price means the number of oil tokens etc.

<table><thead><tr><th>Sphere level</th><th>Price</th><th data-hidden></th><th data-hidden></th></tr></thead><tbody><tr><td>2</td><td>50</td><td></td><td></td></tr><tr><td>3</td><td>80</td><td></td><td></td></tr><tr><td>4</td><td>140</td><td></td><td></td></tr><tr><td>5</td><td>215</td><td></td><td></td></tr><tr><td>6</td><td>300</td><td></td><td></td></tr><tr><td>7</td><td>400</td><td></td><td></td></tr><tr><td>8</td><td>515</td><td></td><td></td></tr><tr><td>9</td><td>590</td><td></td><td></td></tr><tr><td>10</td><td>780</td><td></td><td></td></tr></tbody></table>

An upgraded sphere also increases the player's profit from mining. Sphere multiplicator just like season index impacts final profit by multiplying **season-based reward.**&#x20;

Premium/Silver pass also multiplies it by 1.5/2.&#x20;

For example, if you have a 10 sphere level and staked premium pass, the total sphere multiplier will be equal to 1.36, since 1 + 0.18 \* 2 = 1.36, with **a** silver pass it would be equal to 1.27

| Sphere level | Multiplicator |
| ------------ | ------------- |
| **1**        | 1             |
| 2            | 1.02          |
| 3            | 1.04          |
| 4            | 1.06          |
| 5            | 1.08          |
| 6            | 1.1           |
| 7            | 1.12          |
| 8            | 1.14          |
| 9            | 1.16          |
| 10           | 1.18          |


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