>>1787381
Gatekeeper or Mycopunk.
Mycopunk to get the bosses and level gameplay down, feeling of multiplayer.
Gatekeeper to get the similar feel to Risky, just top-down. A lot of risk-of-rain-esque Roguelites came out in the last year or so, but these two are the only ones that caught my eye that actually had build diversity, multiplayer, and fun times.