I was chatting with a friend the other day about opportunities in crypto games1. He observed that fun ideas that tie into the existing games ecosystem suffer from platform risk that’s probably not worth taking (e.g. build something for trading Dota 2 skins, get shut down by Valve) and asked me what he should build. I couldn’t think of anything off the top of my head, so took it as a good excuse to do some structured brainstorming on the topic.