For a gaming project on web3 platform, referal is an important factor for growth, as I played and seen in splinterlands and some other games which has a referal system that works great and of course without hurting the economy. Only 5% of what the referred accounts has spend by purchasing starter packs and healers and future sales of the project (certainly not on their daily rewards generated) is a good move to distribute a little portion of rewards to the ones those bring new gamers into the world of holozing! I also feel the trading fee for those NFTs are reasonale and fair and with 1.5% going to 3rd party marketplaces, I would like to see some new marketplaces to emerge who gives good offers on NFT buying like monstermarket.