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Designing asset rarity in blockchain games. Part 1
There are a number of approaches that need to be implemented into the game to balance the ability to make assets desirable and valuable with the need to use them in gameplay:

  • Vary the rarity of assets;
  • Offer different ways to obtain assets;
  • Use randomization;
  • Offer limited time events;
  • Use a progression system;
  • Offer a trade system;
  • Offer a reward system;
  • Set clear rules and guidelines.
  • In Part 1 of the article we will review and describe first 4 approaches of rarity design. Further options will be published in Part 2.
    Vary the rarity of assets
    You could make some assets more rare than others, which can make them more desirable to gamers. For example, you could use a rarity scale or color-coded system to indicate how rare an asset is. This can help to clearly communicate to users the relative value and rarity of different assets, which can be useful when they are deciding which assets to purchase or collect. Here are a few examples of how a rarity scale or color-coded system could be implemented:

  • Rarity scale. This could be a simple numeric scale, with higher numbers indicating a higher level of rarity. For example, an asset with a rarity score of 1 would be common, while an asset with a rarity score of 5 would be extremely rare.
  • Color-coded system. This could use different colors to indicate the rarity of an asset, with certain colors reserved for the most rare assets. For example, you could use green to indicate a common asset, yellow to indicate an uncommon asset, and red to indicate a rare asset.
  • Combination of scale and color. You could also use a combination of a scale and a color-coded system to clearly communicate the rarity of an asset. For example, an asset with a rarity score of 3 and a green color code would be less rare than an asset with a rarity score of 3 and a red color code.
  • It’s important to note that the specific approach you choose to define the rarity of assets will depend on the needs and goals of your project, and may need to be adjusted based on testing and feedback from users. The key is to create a clear and intuitive system that helps users understand the relative rarity and value of different assets.
    Offer different ways to obtain assets
    You could offer a variety of ways for gamers to obtain assets, such as through gameplay, purchasing them on a marketplace, or winning them through tournaments. This can give gamers multiple avenues to obtain the assets they want and can help to ensure that assets are obtainable.
    For example, you could use the following approach:

  • Marketplace. The marketplace could offer the most common assets, which are widely available and can be purchased with tokens. These assets would have a lower rarity score or color code.
  • In-game. In-game assets could be rarer, as they can only be found by playing certain games within the ecosystem. These assets could have a higher rarity score or color code than those available in the marketplace.
  • Tournaments. The rarest assets could be available through tournaments, which may only be held occasionally or have a limited number of participants. These assets could have the highest rarity score or color code of all.
  • This approach would create a clear hierarchy of rarity, with assets available in the marketplace being the most common and those available through tournaments being the rarest. This can help to create a sense of progression and achievement for users as they earn or collect rarer assets.
    Use randomization
    You could use randomization to determine the availability of certain assets. For example, you could use a loot box or gacha system where gamers have a chance to obtain a rare asset, but it is not guaranteed. In this approach, users would be able to purchase loot boxes or gacha rolls with tokens, and the contents of each box or roll would be randomly determined. Some of the boxes or rolls would contain rare or valuable assets, while others would contain more common items.
    To build the rarity of assets using a loot box or gacha system, you could consider the following steps:

  • Define the rarity of each asset. Determine the relative rarity of each asset within the ecosystem, using a scale or color-coded system as described in previous responses.
  • Assign a probability to each rarity level. Determine the probability of each rarity level being included in a loot box or gacha roll. For example, you might assign a higher probability to common assets and a lower probability to rare assets.
  • Create the loot box or gacha system. Use the probabilities you have defined to create the loot box or gacha system, ensuring that the relative rarity of each asset is reflected in the chances of it being included in a box or roll.
  • Offer the loot boxes or gacha rolls for purchase. Make the loot boxes or gacha rolls available for purchase with tokens, and allow users to purchase multiple boxes or rolls if they wish.
  • By following these steps, you can create a loot box or gacha system that allows users to randomly acquire assets of different rarities within your game. It’s important to note that this approach can create a sense of excitement and anticipation for users, as they never know exactly what they will get when they purchase a box or roll. However, it’s also important to ensure that the system is transparent and fair, and to carefully consider any potential negative impacts of the system on users.
    Offer limited time events
    You could offer limited time events or promotions that give gamers the opportunity to obtain rare assets. For example, you could offer a special event where a rare asset is available for a limited time or through specific gameplay activities. This can create a sense of urgency and encourage gamers to participate in the event to try to obtain the asset.
    To build the rarity of assets using limited time events or promotions, you could consider the following steps:

  • Identify the assets to be featured in the event or promotion. Choose the assets that you want to feature in the limited time event or promotion, taking into account their rarity and value within the ecosystem.
  • Determine the duration of the event or promotion. Decide how long the event or promotion will run, and make sure to clearly communicate this information to users.
  • Create a sense of urgency. Use marketing and communication tactics to create a sense of urgency for users to acquire the featured assets during the event or promotion. For example, you could highlight the limited availability of the assets or offer discounts or bonuses for purchasing them during the event.
  • Monitor the event or promotion. Keep track of the success of the event or promotion, and consider making adjustments as needed to ensure that it is effective in stimulating users to acquire the featured assets.
  • It’s important to carefully consider the balance between creating a sense of urgency and not overwhelming or alienating users, and to ensure that the events and promotions are fair and transparent.