DEEP is the key word. I consider myself as being at the bottom of the the pool. I typed up my first game on a manual typewriter and paid for someone to type it on an electric typewriter! Games Workshop published that first game.
Apart from that, everything I’ve produced has been bashed out on a battered old laptop in my bedroom. I don’t use advanced publishing software or 3rd party editors/layout specialists etc. However, I think my books look OK.
And the GAMES themselves are good.
I just spend more money going to conventions to “promote” them than comes in in profit.