It's definitely a balancing act. I'm not saying that all web games need to be dumbed down, but having built some myself “this game is too complicated” is prett

It's definitely a balancing act. I'm not saying that all web games need to be dumbed down, but having built some myself “this game is too complicated” is pretty common feedback for anything that can't be picked up or shown to be intriguing within ~10 seconds. People are lazy. There's definitely a market for more in-depth browser games, though. https://bot.land/ https://bot.land/ might give you some ideas in case you haven't seen it yet. They allow guest players, and the initial walkthrough is excellent.