[This is one of the programmers logged in]
There's at least the possibility of online co-op in an update down the road, but it would be months away. If we had known everyone would be isolated right now, we might have concentrated on that instead of being satisfied with couch co-op.
The team would be fine with open sourcing the game eventually, but right now I'm convinced that it wouldn't be usable or helpful to anyone. It's a tangled mess of both C# and JS. There was a long stretch where I was the only programmer, and the code from that period is almost entirely undocumented, and the few comments I did put in are mostly vague reminders to myself peppered with curse words.
I hope you enjoy the game! (If you still buy it after knowing what's under the hood.)
Thanks for your interest!
Haha yeah, I guess nobody knew we were going to be isolated by now.
I agree, implementing online multiplayer takes a lot of effort, developing and testing, while it makes the whole game a bit more complex, and it not always really worth it, since these kind of games are just more fun to play couch co-op.
Regarding the source code, it's more of a philosophical thing. I feel like everything should be open, and when we talk about starting a riot, it sounds related somehow :D