Everything is better with friends. Running. Dining. Playing roguelikes with snazzy combat and varied upgrades, even if they do have bizarrely hateful endings that are so horrendous I can’t avoid mentioning them in this first paragraph.
What I mean to say is that Caveblazers now has an online multiplayer mod, and it’s probably great. The mod also lets you enable 360 degree aiming (rather than 8-directional), and adds a command that skips the early levels and plops you straight into a shop. Just don’t fuss too hard about winning.