# Build your Collection

In Mission Control, your collection is represented by Cards, which are NFTs. These cards track the types of items and quantities of resource production power (known as collection strength) that you have, as well as your unique skills and achievements. You acquire NFTs through gameplay, which are then minted to the blockchain and stored in your wallet. The game reads your wallet inventory and uses it to perform gameplay actions.

### **NFT Categories**

#### **Base Cards**

Base Cards represent specific items in the colony and are available for each item or astronaut type. They come in various rarities and can be crafted into higher rarity cards through gameplay. The higher the rarity, the more resource production power & hazard resistance the card has. Examples of base cards include Dark Matter Solar Panel Array cards and Shadow Female Scientist cards.

To earn resources, players with Base Cards must stake them to an Ownership or Sponsorship Card of the same type.

* **Collection Strength for Base Cards:**
  * Standard: 1
  * Shadow: 6.5
  * Stainless Steel: 34
  * Gold: 144
  * Dark Matter: 465
  * Solar Flare: 5,000 (with Immunity to Hazards)

You can [Buy Base Cards](/how-to-play/build-your-collection/buying-base-cards.md) and [Sell Base Cards](/how-to-play/build-your-collection/selling-base-cards.md) in the game for a dynamic market price.

<figure><img src="/files/IQ3rDJQcn25iYbZKrXp5" alt=""><figcaption></figcaption></figure>

#### **Ownership Cards and Sponsorship Cards**

Ownership and Sponsorship Cards are rarer than Base Cards and correspond 1:1 to unique items and astronauts in the main settlement. Holders of these cards can set a percentage fee in $MARTIA that all stakers must pay to use their card for resource production.

Each one of these cards also has a health %, which can go down if hazards affect it. This reduces the production efficiency of all supporters of that card, so owners will need to work quickly to restore health.

* **Collection Strength for Ownership & Sponsorship Cards:** 75,000

<figure><img src="/files/JUwngsrXnN6zeQcidmvm" alt=""><figcaption></figcaption></figure>

#### **Patches**

Patches are individual identifiers earned as NFTs that represent your avatar within the game. You can acquire them by participating in community activities, joining in-game communities, or engaging in missions.

<figure><img src="/files/9IepV37lTNXzakrOiVGh" alt=""><figcaption></figcaption></figure>

#### **Innovations**

Innovation Cards modify skills and actions within the game. Major Discoveries provide larger modifiers to skills and actions, while Minor Discoveries offer smaller modifiers.

<figure><img src="/files/x5BQ16IhRY9bMHDySzex" alt=""><figcaption></figcaption></figure>

#### **Achievements**

Achievements are badges that you earn by completing tasks or sets of tasks within the game. Once you complete an achievement, you can mint the badge representing that accomplishment to your blockchain wallet. The first person to mint each achievement will have their name listed on the achievements page forever.

<figure><img src="/files/ulnecqr75erJvrE4xgNe" alt=""><figcaption></figcaption></figure>

By understanding and utilizing these various NFT categories, you can optimize your resource production, enhance your gameplay experience, and showcase your unique accomplishments in Mission Control.


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