> For the complete documentation index, see [llms.txt](https://wiki.sidusheroes.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://wiki.sidusheroes.com/nidum/how-to-start-playing-nidum.md).

# How to Start Playing Nidum

<figure><img src="/files/MXbpLssGlSsG3AxAE2zc" alt=""><figcaption></figcaption></figure>

To access all the in-game features on Nidum Station, you need to purchase NFTs, a monthly subscription, or rent characters via Organizations. NFTs grant you more benefits, while monthly subscriptions and Organizations are more budget options.

[A MetaMask wallet](https://metamask.io/) is required to authorize entry to the game.&#x20;

There are 3 ways to enter Nidum as a Hero. Check out the guides and details for each of them below.

### 1. 7-day free trial + Subscription

<figure><img src="/files/wP1zkFIWJXnASuhlP8Hz" alt=""><figcaption></figcaption></figure>

Player receives 3 [Longum NFT](/nidum/collections.md#longum) for 7 days. A subscription costs the equivalent of $25 dollars and is paid monthly.

* Longum holders can win basic resources and unique Trantoe resource
* [$SIDUS and $SENATE ](/nidum/resources/sidus-and-senate.md)can be invested
* [Resources](/nidum/resources.md) can not be invested **on 7-day free trial**

After a 7-day trial period, you will need to pay $25 in SIDUS monthly to continue your subscription.

### 2. Rent cards from [Organizations](/nidum/modules-and-construction/organizations.md)

<figure><img src="/files/m4uJKcMVIj4S0mupAPdf" alt=""><figcaption></figcaption></figure>

By joining [organizations](/nidum/modules-and-construction/organizations.md#join-an-organization), player can gain access to the heroes of Organization Boss and play them.

* Player can invest gained resources in modules
* Player splits resources with [Organization Boss](/nidum/modules-and-construction/organizations.md#create-an-organization)

You will need to pay a fee in SIDUS tokens.

### **3. Have at least 1 NFT from:**

– the SIDUS HEROES GENESIS Collection: available now on [the secondary market, i.e. OpenSea](https://opensea.io/collection/sidus-nft-heroes) and on [Marketplace Module](/nidum/modules-and-construction/marketplace.md) inside the game.\
– the SIDUS HEROES ACADEMY Collection: available now on [the secondary market i.e. OpenSea](https://opensea.io/collection/nidum-items) and on Marketplace Module inside the game.

![](/files/ZW4i3AulW44wNmo74Lvh)

#### NFT cards also can be bought inside the game on Marketplace module

Simply buy it on [Marketplace Module](/nidum/modules-and-construction/marketplace.md). In main lobby click on ["Modules"](/nidum/modules-and-construction.md) and scroll to "Marketplace". There click on NFT HEROES category. You can find [how to deposit into the game here](/nidum/resources/sidus-and-senate.md#how-to-deposit-usdsidus-and-usdsenate).

<figure><img src="/files/jox5H6Yh2XhSq4988e78" alt=""><figcaption></figcaption></figure>

### **Transfer your NFT to SIDUS HEROES:**

#### For the ORIGINAL GENESIS Collection (SIDUS NFT HEROES):

* Lock your NFT [here](https://sidusheroes.com/heroes-lock/)

<figure><img src="/files/ZdAHzLYNlU1Ulo9DlIFD" alt=""><figcaption></figcaption></figure>

* Release your Genesis Hero directly inside the [game](https://play.sidusheroes.com/) with no GAS to pay.

In case you bought an NFT card (from SIdus Heroes Genesis or Sidus Heroes Academy from the secondary market on [OpenSea](https://opensea.io/collection/sidus-items) or another marketplace, you need to transfer it to the game via the [SIDUS GATEWAY](https://sidusheroes.com/sidus-gateway/).

![](/files/ThxP8xXl4OzTI9VtwM9x)

#### For the ACADEMY Collection:

If you bought an NFT card from the secondary market on [OpenSea](https://opensea.io/collection/sidus-items) or another marketplace, you need to transfer it to the game via the [SIDUS GATEWAY](https://sidusheroes.com/sidus-gateway/).&#x20;

* Release your Hero directly inside the [game](https://play.sidusheroes.com/) (if you bought it on the presale or public sale)

![](/files/ThxP8xXl4OzTI9VtwM9x)

Explore details on all the NFT collections on [the Collections page](https://wiki.sidusheroes.com/nidum/races-and-collections).

### How to enter the game

After you choose one of 4 options and for all future sessions, you can access the game in the following way:

1. Go to[ the official website](https://sidusheroes.com/).
2. Choose[ Nidum Arena Battler](https://sidusheroes.com/nidum).
3. Press “Play in Browser”.
4. [A MetaMask wallet](https://metamask.io/) is required to authorize entry to the game.

<figure><img src="/files/s3Q5kCa4SccltkWhvuWg" alt=""><figcaption></figcaption></figure>

We recommend using the Google Chrome web browser and setting the screen resolution to 1920x1080.