Hey, I appreciate the honest response and just wanted to chime in a bit. I am currently working myself through playing and mini-reviewing all of the Justice Bundle games, and I am not really in need of a Steam key per se. However, as I would agree that the game would benefit immensely from multiplayer and now almost a million people owning the game, would it not be feasible to grab the game and 3 friends and play a few rounds online? As it stands, most people will never bother to look at it, but if you could hop onto reddit or a forum and find a few players to play with, I could see this being a valid undertaking.
Not to mention it could give you a bit of marketing (for your future projects) if you can communicate this to the itch.io subreddits, as people love their free Steam keys and during Corona people are itching to find new small stuff to entertain themselves with online.
If you ever decide to offer a way for people to get a Steam key out of this, do let me know please. I think the shelf life of this bundle is far from over :)
(My impressions list: https://itch.io/c/915453/quick-impressions-bundle-for-racial-justice)
Edit: Also the reason I am writing this, is because the driving mechanics are unique in a way I've never seen before and I am always seriously intrigued by original concepts, so its a bit of a shame to notice once more how smaller Indie games cannot sustain much of an online following and wanted to share my 5 cents on how that might help you.