You could try selling through Createspace, but it's more focused towards Kindle books / novel sized books so I'm not sure you'd quite intersect your desired target audience. It's not where I'd go to look for RPG modules, assuming that's what you make.What about amazon?
I'm not sure about itch, but having the freedom to post your stuff anywhere and only losing another 5% is worth it to me. I've had decent results on Lulu. Not that great of results on my own store...need to get the advertising/marketing tools down. But I at least enjoy the freedom of being able to set up shop wherever I want.How big is the market on itch compared to DriveThru? Is it worth losing 5% of DriveThru revenue to also list there?
The 5% cut is actually the little cost of going non-exclusive. DriveThru gives publishers PPP to spend to put their products on the front page, and exclusive publishers both get more PPP for being on the site for longer (although you also get PPP for sales, so if you're making sales, the differences is negligible) and priority on the front page. You are much more discoverable if you're exclusive.How big is the market on itch compared to DriveThru? Is it worth losing 5% of DriveThru revenue to also list there?