> For the complete documentation index, see [llms.txt](https://docs.roachracingclub.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.roachracingclub.com/gameplay/roach-management/roach-energy-system.md).

# Roach Energy System

Each slot has a generator that produces energy, while each roach has a battery to store it. When putting a roach on charge it starts accumulating the energy from the generators. Generators in slots work altogether and contribute to total energy output for all roaches, meaning that charging 1 roach while having 2 slot generators will be two times faster than with 1 slot.

Energy limit - the battery capacity of the roach, it determines the amount of MTGN rewards in Arcade races. The basic default is 100 Energy. 

Energy gain - the generator energy output, it determines the energy production speed, default is 50 per hour.

**Charging mechanics**

After a race, roaches run out of energy and need to be charged:

* Charging costs 50 MTGN
* If a player doesn't have enough MTGN, they can earn it by completing Missions, inviting friends, or buying it with TRAX
* Players with multiple roaches can choose which one to charge
* Each roach slot has a generator that produces 50 energy per hour
* A roach needs 100 energy to be fully charged
* With one generator, charging takes 2 hours
* With two generators, charging takes 1 hour
* With three generators, charging takes 40 minutes
* Multiple roaches charging simultaneously share the charging speed
* Players can instantly complete charging for 2 TRAX

**Upgrade Roach Energy**

Each roach slot has a generator that produces energy. You can upgrade these generators to increase their energy production rate.

Each upgrade increases the generator's output by 2 energy/hour. Each subsequent upgrade costs 30% more than the previous one.

| **Level** | **Energy/Hour** | **Cost (MTGN)** |
| --------- | --------------- | --------------- |
| 1         | 50              | -               |
| 2         | 52              | 25              |
| 3         | 54              | 50              |
| 4         | 56              | 50              |
| 5         | 58              | 75              |
| 6         | 60              | 100             |
| 7         | 62              | 125             |
| 8         | 64              | 150             |
| 9         | 66              | 200             |
| 10        | 68              | 275             |

**Battery upgrades**

Increase roach energy capacity and compression.

You can upgrade the battery capacity of your roaches to increase their total energy and energy compression.

Each upgrade increases the battery capacity by 5 energy. Each subsequent upgrade costs 60% more than the previous one.

| **Level** | **Battery Capacity** | **Cost (MTGN)** |
| --------- | -------------------- | --------------- |
| 1         | 100                  | -               |
| 2         | 105                  | 100             |
| 3         | 110                  | 200             |
| 4         | 115                  | 300             |
| 5         | 120                  | 400             |
| 6         | 125                  | 700             |
| 7         | 130                  | 1,000           |
| 8         | 135                  | 1,700           |
| 9         | 140                  | 2,700           |
| 10        | 145                  | 4,300           |

**Energy Compression**

To ensure that increasing battery capacity doesn't lead to more rounds in a race, the game uses energy compression. At level 1, compression is 20 (100 energy/5 rounds). At higher levels, compression increases, giving players larger rewards for winning rounds.\
\
Example: Taking 1st place with 10 participants gives a 6x multiplier. With level 1 compression (20), the reward is 6 × 20 = 120 MTGN. With level 6 compression (25), the reward is 6 × 25 = 150 MTGN.