If you're not already aware of them you might want to check out https://www.nuclearphynance.com/ and https://forum.wilmott.com/ Not nearly as active as here but much more hard core quant.
i do have ebs but i dont use it for market making. if you call them (cme) up they will be very happy to sort out what you need. out of interest how did you train a market maker without access to the order book? did you train it playing itself like an adversarial bot. good luck
Hi Tommy, good question. I wrote my own LOB simulator engine that takes full depth order book data that I collected on BTC futures. It executes a trade only when the level is breached (current bid < limit order bid). It doesn't simulate order queuing but I validated this execution against real account behavior, it estimates it pretty well - simulated equity curve is pretty close to the real account equity curve. I am doing training using neuroevolution.