reitit VS re-frame-10x

I would build the CLJS for your game logic. Then I would build the backend server separately with API endpoints your front end to talk to. https://github.com/metosin/reitit is a pretty good option.

A significant feature of reitit is that routes are composed of simple vectors and maps. That means you can pre-process that data structure however you want before building the router.

You might look at the examples on the Reitit page. Reitit seems to be the emerging library for routing, and it does get you most of the way there, no matter which direction you are looking to go..

for runtime validation & coercion, you can use the pedestal-utilities from reitit which support all of spec, schema and malli. For dev-time var instrumentation (static & dynamic), there are several ways to add those to existing or 3rd party codebases.

Surely not as fully featured, but the general idea has been possible for ClojureScript Re-frame with: https://github.com/day8/re-frame-10x

Metosin Reagent-dev-tools. I used quite a lot the excellent Metosin Reagent-dev-tools (as you can see in the picture below). I tried the re-frame-10x tool as well, but I liked more the Metosin Reagent-dev-tool’s visual layout (and I’m a company man - you eat your own dog food). The Metosin Reagent-dev-tool was one of the most important development and debugging tools during this exercise. Once you configure the tool to show the Re-frame application db state you get a nice tree view to the app-db: