Do you want to play a game?

Here we have the rules for 2 games for now.

One is the d20 SRD. This is a good baseline set of rules. You could also do Pathfinder, or Starfinder, or something else. But those rules are elsewhere already and well maintained.

The other is my set of rules. It's a mix of everything mentioned above, in addition to things I like, with changes I like.