The first step toward using Splinterlands cards to "pay for" monster spawning would be to settle upon a monster design for the Splinterlands card one wishes to use to spawn monsters in the CoffeeMUD. Basically for any given level of a card we'd need to settle upon the specs of a monster corresponding to that card. So if you have a card in mind you'd like to deploy as a MUD-monster, post an article proposing specs for the monster such a card would be used to spawn. Then we'd argue to around until folks agree we have a not to awful represention spec'd out and we could then proceed to start deploying...
RE: Maybe the Galactic Milieu CAN integrate non-'free open source' games afterall...