I think a nice little feature would be to be able to split the revenue of a single game with other developers that work on the game.
This would really help small teams.

I found this idea to be submitted a couple of times a few years back (2015, 2016), but it still isn't implemented. (Or I can't find it?)
Is there any reason this isn't added yet?
I just wanted to add a voice to this request, and I'm sure many others would like this too.

I know a few groups that would love to have this because it increases transparency for cooperative work.

It would be great to see some kind of option to do this. I couldn’t disagree with DaedalusMachina more on this.

Has there been any further thought along these lines? I have this for my projects that currently reside in LeanPub and practically all of my work includes revenue sharing with collaborators, meaning most of it I can't host here. I strongly prefer being able to direct money straight to their hands from sales on a platform.

Strongly disagree with DaedalusMachina's points as even two-person collabs can have more hassle on the money handling than the rest of the project combined - especially if cooperating internationally - and those problems compound the more complex the and larger the collaborative group.

I would also like to have this feature available for small projects. Would be EXTREMELY useful.

From an interface standpoint, I would love to have something akin to a spreadsheet I can fill in that can also do a little checksum for me.

I am also interested in something like this. Came here to suggest it, as well.

Having a system that automatically handles royalty splitting would be fantastic, and a great way to see a flood of smaller creators doing business on this platform with less difficulty.

I need this feature too. A lot of smaller indies may want to be able to do revenue sharing on their projects. I like what Cannibal Halfling Games proposed.

The lack of this feature (along with a lack of print-on-demand) is holding a lot of indie physical game creators back from switching wholly over from DriveThruRPG to itch.io. 

Chiming in to support this. DriveThruRPG already had this for a long time, but when DMsGuild and other Community Creator programs on their site launched, they didn't start with that feature. Once they did implement it, however, DMsGuild in particular went from being "that neat place where people post their homebrew stuff in Word Docs" to "Announcing the Guild Adept program!" and record-breaking sales on collaborative projects like Uncaged and many others.

Coordinating royalty payments with folks in the US, UK, South American and New Zealand isn't exactly easy or fun, so having that sort of tool will certainly boost the profile of itch among smaller publishing teams like these, who still put out amazing, quality work that sells on the order of tens of thousands of units in some cases.

I would also really like to see revenue splitting here.

Agreed. Even as a small business, avoiding the tax paperwork and implications of taking on the revenue and splitting it to "contractors" would be a big help. I personally would make more projects with other creators on itch with this as a feature.

I would like to see this implemented as well. 

I support the idea of revenue splitting, especially considering it will help afford collaboration to an official degree

The bigger problem is where is the revenue? :) 

But just to give some opinion, Newgrounds has this feature and its very lovely. You set the credits and their individual revenue share. This is indeed very handy if you use other creators' music and assets. If the asset maker marks their asset with common creative free asset and allows revenue share. You directly give them revenue share from the portal, no wire transfer, no skype, no messaging or other boring stuff. 

I think this would be a mega useful feature and would encourage collaborative work on this platform, which will encourage higher-quality work. I read a blog post recently on the topic... The main takeaway is that if 5 people want to make stuff, the 1 thing they make collaboratively will be better than the 5 things they make separately.

Rev share will really help make that happen for itch, and I believe change the culture on this platform massively for the better.

I fully support this idea! I'm a newbie to this platform but have plans to publish a lot of work through it next year: a revenue sharing option would solve a great deal of headaches, as my collaborators are scattered across the globe.

Newgrounds has an extremely well implemented rev split system