It's been tough to work in an echo chamber as a solo dev and to not be confident if I am going in the right direction with my game, so I am hoping to get some critical feedback to validate my direction. 

My game is an open world 2D roguelike with auto-battle mechanics. The main hook of the game is that there are many gimmicky bosses (currently ~20 with goal of 100+ long term) with unique items that are rewarded upon defeat, and there are also champion bosses which are snapshots of other players' builds. So the general game loop is to explore world, expand territory and create a build and stack up against other player builds while trying to achieve a diverse and replayable experience that is also ranked by a leaderboard. 

My recent update has changed some of how the core boss encounters work and now I'm starting to really grind out more bosses which should help with making the game more diverse and fun. I'm having some doubts around visual style, whether they're too simple, or if the 'style' is consistent enough to make it work. Also, classes right now are a tad too simple and probably require more depth in form of passive/active differences to make them more unique in gameplay. 

Game link: https://hoooootel.itch.io/champions-conquest

Any and all feedback is greatly appreciated!

I am mostly looking to validate:

• is the game fun/addicting wanting to replay runs or improve runs?
• is the difficulty at a good place?
• is the onboarding/tutorialization sufficient?
• what would be something you would like to see in the game that currently doesn't exist?