i opened 5 instances of srb2kart just to watch 15 bots getting karted
13because that's what you gotta do sometimes
Now for some actual coherence, this was done using the PlayerBots mod that recently released, which pretty much gives you the chance to play with bots that seem straight out of Mario Kart 64 (sans rubberbanding) BUT with the stuff that can happen even with these and the fact that Kart v1 didn't come with bots, its pretty fun stuff. I had written a guide about how to use it (because the release didn't come with any :v) which you can check h e r e: https://mb.srb2.org/addons/the-very-nice-guide-on-how-to-use-playerbots-on-srb2kart.2510/
Now...why 5 instances? Basically it works in that whatever players join your server (except you if hosting) can be shot with the Playerbot-inator, but with a single instance this means you have to play in Splitscreen (2-4 players) and turn those extra players in bots. However, you can do this thing about opening extra instances with local players joining your server while leaving the host/you separate with a single view. That's why you don't see me playing, my window was in the background instead of one of the windows seen in the footage.
And...what else can I say, it definitely works, and does give you a good run for your time in certain tracks depending of your luck with getting karted by a bot item, while in others they still have a bit of an issue with catching up because they are like rail-riding drones. But hey, you can't actually have legit 16 players in a single PC like this as you see (at least from what I have heard so far...) since only a single window will pick up inputs (even with gamepads), so this wonderful mess of a sight you see here is thanks to the almighty Playerbot-inator (which is...not the real name of the addon, i'm just foolin with you y'know)