As you mentioned, all NFT in the game is 100% backed by ETH, is the the WETH under the MATIC network. When you checked this address -
https://polygonscan.com/address/0x1ae8c689c013f596aec66471e8f5662f16b06642 , as linked from your site, you currently have about 8.51 WETH. So I am assuming, those are the current amount you collected so far from this project. Your legendary dwarf is quite expensive but a player can start to purchase the common dwarf which costs, $10. This is better as compared to other P2E platforms, which you can't start with small amount of money. By the way, how many dwarfs does a player need to access your gaming platform?