I think you're misunderstanding my argument. If one, or two, or three, or ten people get together to make a game and sell it, then that is still capitalism. Capitalism isn't solely "Massive public corporations screwing the little guy for profit." Is also includes any small business or indie developer who makes a profit selling their own labor.
The example where the three devs make a game and sell it to share the profits is exactly how capitalism works. That is most new companies get a start. That is also how older companies get disrupted by new ones.
Unless we're severely misunderstanding eachother, I don't think either of these arguments are true. Selling things and making money isnt unique to capitalism -- it precedes it, and it will succeed it, if capitalism ever goes away.
What is unique to capitalism is holding private property, paying laborers to work with that property, and pocketing the difference between what you pay them and what the product of their work is worth. Or, put another way:
https://en.wikipedia.org/wiki/Capitalism said:Capitalism is an economic system based on private ownership of the means of production and their operation for profit.[1][2][3]
A small indie can certainly behave in a capitalistic way, but by no means has to in order to operate.
Where even the most egalitarian indie developer will probably find themselves becoming a capitalist tho is what they do with all of that money they make from selling their game -- unless they stuff it in their mattress as cash, it's probably going to operate as Capital somewhere -- either loaned out to a bank, or more directly invested in stocks or in paying workers.