I love how the complex topic of blockchain gaming was adapted to my favourite story from my childhood that of three piglets.
Isn't your Layer 2 like ETH , DOT etc. Layer 1 Blockchains?
Oh yes, they are layer 1s but I have just tried to show how blockchain has adapted for blockchain gaming and APIs and SDKs from that of Enjin, RMRK has made it easier to develop NFTs .Hence I have shown them as Layer 1.
Ideally you can call them Layer 0 but then Internet is always Layer 0 for blockchain Dapps :D