I believe this is @rblb. They told me they had something exciting cooking.
The roadmap gets fun right about here:
At this stage, the engine supports P2P networking and essential Nostr functionalities, including player authentication, event signing, and relay subscription.The P2P network stack enables direct player-to-player connections, using Nostr solely as a coordinator, while actual traffic is P2P.
Looks like the 'aha' bit is coordinating/facilitating P2P connections via nostr relays.