After tinkering around with Lambda myself building MMOG with it, while it does exactly what it says, the pieces seem too disparate and everything felt to "cobbleware" for me to do anything user-facing with it. Indeed, it seems an ideal system to do offline and backoffice. The stack I ended up with was API-gateway <-> Lmabda <-> Dynamo <-> Dynamo Streams <-> SQS <-> Browser <-> S3 Good luck troubleshooting that. I found the concept of "serverless" more appropriate using Google App Engine.