FYI:
http://www.gamasutra.com/blogs/KylePittman/20150420/241442/CRT_Simulation_in_Super_Win_the_Game.php
Doesn’t work anymore. But this one does:
https://www.gamedeveloper.com/programming/crt-simulation-in-super-win-the-game
Why bother paying for this wonderful game if you're just going to turn it into every other D&D / OSR game? Part of it's charm is that lack of attack role.
You should try playing it rules-as-written before applying some untested theory-craft to it. It's clearly not an oversight by the designer -- e.g. check out the praise on this very page for this exact decision.
In theory it can work with any RPG, especially an OSR or mouse-based one. But it's intended to be run with Mausritter, which is lucky, as the rules for that are free!
I'm already on that Discord. I didn't realise this adventure was made by the same person that did Mausritter itself! :) I guess paying for this is a good way to donate for such an excellent (and free) system.
I know how helpful and active you are over on your Discord server, as I've seen it myself, but there are a few questions here from other people who look like they've bought the product, are seeking help, and didn't know to ask on Discord :)