Shop

Automatic market maker Exchange

What is Shop?

Shop is place where players can exchange their tokens, items, etc. It is accessible via the in-game main user interface. Player can exchange any types of token that is used in game and all transactions occurring in Shop will not cost any trading fee. Currently, there are two types of shop (more will be added in the future), which are LUMI shop and Stem shop.

LUMI Shop

In LUMI Shop, players are allowed to exchange the currency used in game by buying and selling LUMI tokens. The exchange rate is determined by an automated market maker algorithm. Currently, there are 2 tokens that the system support and can be exchange in Shop. In the future, there will be more supported tokens available.
You can check out the price of LUMI at
  • LUMI - KKUB
    • This option shows that player can choose to exchange LUMI and KKUB with one another by choose to buy or sell.
      • BUY :
        • by clicking buy, meaning that you want to buy LUMI by using KKUB in wallet. Therefore, this transaction requires KKUB in player's wallet to to do.
          The system will deduct the KKUB in your balance and convert them to LUMI
      • SELL :
        • by clicking sell, meaning that you want to sell LUMI for KUB. After selling success, player will receive KUB paid into the wallet and lose LUMI
    • The liquidity of LUMI -KKUB liquidity pool can be changed by buying and selling LKKUB Stem
  • LUMI - KUSDT
    • This option shows that player can choose to exchange LUMI and KUSDT with one another by choose to buy or sell.
      • BUY:
        • by clicking buy, meaning that you want to buy LUMI by using KUSDT in wallet. Therefore, this transaction require KUSDT in player's wallet to to do.
          The system will deduct the KUSDT in your balance and convert them to be LUMI
      • Sell :
        • by clicking sell, meaning that you want to sell LUMI for KUSDT. After selling success, player will receive KUSDT paid into the wallet and lose LUMI.
    • The Liquidity of LUMI - KUSDT liquidity pool can be changed by buying and selling LKUSDT
*Graphic & Contents are not final.
*Graphic & Contents are not final.

STEM Shop

In this shop, players can exchange their tokens with stems. Currently, there are 2 options of stem to choose, which are LKKUB Stem and LKUSDT Stem. These two types of stems (and others that will be added in the future) can be used to farm for crops, but will have the different profitability depending on the farm that players choose.
Stem in this game is actually a LP-token (liquidity provider token) of LUMI and Selected Token pair. Stem Shop allows player to provide a single asset (one of Selected Tokens; KKUB or KUSDT for example) to create an LP-Token. Behind the scene, the Shop System will automatically convert the appropriate amount of provided tokens into LUMI and use them for providing liquidity.
Note: The appropriate amount of tokens that is converted to be LUMI is calculated by the game's algorithm, which could be nearly half and more or less depending on the amount players want to convert and the amount of total token in pool at the time of transaction making.
  • LKKUB STEM
    • This Stem option is equivalent to paired LP token of LUMI - KKUB
      • BUY : is Adding LUMI - KKUB LP
        • by clicking buy, meaning that you want to buy LKKUB Stem by using KKUB in wallet. Therefore, this transaction require KKUB in the player's wallet to do.
          The system will deduct the KKUB in your balance and convert them to be LKKUB Stem in game and will be kept in player's Inventory.
      • SELL : is removing LUMI - KKUB LP
        • by clicking sell, meaning that you want to sell this stem for KKUB. After selling success, player will receive KKUB paid into the wallet and lose this stem.
  • LKUSDT STEM
    • This Stem option is equivalent to paired LP token of LUMI - KUSDT
      • BUY :
        • by clicking buy, meaning that you want to buy LKUSDT Stem by using KUSDT in wallet. Therefore, this transaction require KUSDT in the player's wallet to to do.
          The system will deduct the KUSDT in your balance and convert them to be LKUSDT Stem in game and will be kept in player's Inventory.
      • SELL :
        • by clicking sell, meaning that you want to sell this stem for KUSDT. After selling success, player will receive KUSDT paid into the wallet and lose this stem.
*Graphic & Contents are not final.
*Graphic & Contents are not final.

How to estimate the amount of Stem to be received from buying

Amount of Stem to be received = Amount of LP token = A, if A is less than B, or vice versa, which A = Amount of Token 1 added to Pool times Amount of total LP token supplied by this Pool divided by total amount of Token 1 in Pool. [ Token 1 added x Total LP-Token ] / Total Token 1 B = Amount of Token 2 added to Pool times Amount of total LP token supplied by this Pool divided by total amount of Token 2 in Pool. [ Token 2 added x Total LP-Token ] / Total Token 2 Example : Given LUMI-KKUB Liquidity Pool contain 100,000 LUMI + 1,000 KKUB, and total amount of LKKUB Stem in game (LUMI-KKUB LP token) of 10,000 Stems. Player wants to Buy LKKUB Stem with 4 KKUB.
The appropriate amount of KKUB to be converted to LUMI is about 2 KKUB, then 2 KKUB is converted into 200 LUMI. A = 200 x 10,000 / 100,000 = 20 B = 2 x 10,000 / 1,000 = 20 In this case, both A and B are 20. Therefore, the estimated amount of stems received will be 20.

How to calculate Stem price

Price of Stem shown will be only estimated value by the calculation from following equation:
Price of Stem is equal to the value of token that buyer willing to pay divided by estimated amount of Stem(LP Token) : Stem Price = Amount of Token Paid / Estimated Amount of Stems Received
Example: Player wants to Buy LKKUB Stem with 4 KKUB The estimated amount receive of Stem = 20 Stems Therefore, the estimated LKKUB Stem Price = 4/20 = 0.2 KKUB

How to estimate the amount of Token to be received from selling

When a player sell Stem, game system will remove LP-Token of that Stem out from the Liquidity Pool, and get back the 2 types of Token from the LP-pair.
Amount of Token 1 = Amount of Stem Selling x Total amount of Token 1 in Pool / Total LP-Token supplied by this pool. [ Amount of Stem Selling x Total Token 1 ] / Total LP-Token
Amount of Token 2 = Amount of Stem Selling x Total amount of Token 1 in Pool / Total LP-Token supplied by this pool. [ Amount of Stem Selling x Total Token 2 ] / Total LP-Token
All amount of Tokens withdrawal from selling will be given to seller in same type of token when buying, by automatically taking LUMI tokens to exchange in pool to convert back and add back to the total amount that a seller will receive.
Example:
Given LUMI-KKUB Liquidity Pool contain 100,000 LUMI + 1,000 KKUB, and total amount of LKKUB Stem in game (LUMI-KKUB LP token) of 10,000 stems.
Player wants to Sell 20 LKKUB Stems Amount of LUMI to be received from removing LP token = 20 x 100,000 / 10,000 = 200 LUMI Amount of KKUB to be received from removing LP token = 20 x 1,000 / 10,000 = 2 KKUB Then swap 200 LUMI to 2 KKUB Therefore, the estimated amount of KKUB receive will be 2 + 2 = 4 KKUB

Risk of Buying/Selling Stem

Although farming with Stem giving higher APR than farming with Seed, but the investment of Buying / Selling stem come with some Risks occurring by the Stem Price that changes over time by amount of Liquidity in Pool, plus with other risks including; Impermanent Loss. Players must study more for knowledge and information before starting an Investment in order to reduce risks and produce highest benefits from Investment.

LUMI Stem

LUMI Stem is a special stem which gaining by the exchange of LUMI tokens. The exchange rate of LUMI and LUMI Stem is always 1:1 (1 LUMI Stem = 1 LUMI)
Each time players sell LUMI stem takes 7 days, during this period the player will not be able to sell more LUMI Stem, players can only cancel the sale. At the end of this sale period Players will be able to get LUMI back by pressing the Claim button in the Stem Shop window.
Players can buy LUMI Stem at the Stem Shop window.
Last modified 4mo ago