Pretty nice little survivors-like! It's early in development, but I'd say you got a pretty solid foundation so far as I found the combat quite satisfying and addictive with how you'd setup the graphics, special effects, and impact/feedback for it, and I found the variety of weapons and enemies to fight to be very fun and interesting as well. Game overall has some pretty solid presentation for aspects like the title screen and menus and death animations too, so I like that attention has been made to aspects like these that are usually glossed over (though it'd be understandable if you left these for later on, but I like that you've done them as they help first impressions).
In terms of where to go from here, my feedback would be:
*While, as mentioned, the feel of combat itself is quite fun and exciting, the feel of progression aspects isn't quite up to snuff. Picking up currency is lacking that addictive 'ding-ding-ding' quality to it due to no sound effects and the currency itself being quite dull (I dunno what they even are, some sort of scrap metal?), and acquiring upgrades is lacking the fanfare that it deserves considering how important of an event it is (would love a more explosive level up effect, and picking an upgrade would be great if it played some sort of associated sound effect, like thunder for picking Thor abilities).
*Combat can get quite messy and chaotic and could use some elements to help visibility, particularly to help enemy ranged units and their bullets stick out more so getting hit by them wouldn't feel so sudden and unfair: perhaps a signal/telegraph for their attacks and outlining the units and their bullets would help them pop-up and have a consistent language to them.
*Could also use some other nice things, like a visible bar or cooldown timer for your dash, and perhaps making the upgrade progression bar bigger so increasing it is easier to see: the later levels come so slowly and it's made even worse but the small bar as it makes it look like you aren't even increasing it at all even more when the increments are so tiny.
*The rune upgrades are a little lame compared to weapon upgrades as they largely seem to be tiny statistical upgrades that are confusing and unexplained (what the heck is ignite chance, for instance?)