Last Strand

I hope the following things I'll say doesn't discourage you. I'm all in for people making games for people's enjoyment, but I'm gonna review it honestly as an action story enjoyer:

• Concept is simple, a 2D one-floor wave survival. However, difficulty doesn't seem to really increase as the run continues. After a few waves, zombies stop increasing. No new threats appear, and the players only gets stronger and stronger. Simple, perhaps overlooked solution would be increasing the zombies as the run goes on. If you're feeling ambitious, add more types of zombies; even more ambitious, adding boss zombies after certain waves.
• Story was straightforward, but needed a bit more, imo. Something uniquely yours. I assume the story isn't a major factor in the game so I won't get into it too much, but yeah. Some names would help, even if a little bit.
• Jumping seemed pretty unnecessary, not just cuz there's no second floor to jump to, but also cuz the jump itself is so low that it doesn't make a difference. One big improvement, i think, would be making the jump higher. By itself, it would give players an escape option when they're surrounded. You can expand on it after that, like platforms, enemy mechanics, movement upgrades, etc.
• Shooting gets tedious when you have to continuously click; I'd suggest being able to hold down left-click just for QoL, tho if the tediousness was intended, then I can't do anything about it, lol.
• This one is just a personal preference, but button placement could also use some work. Since the attack button is left-click, the WASD keys are more likely to be used for movement. With the right hand on the mouse, it would be more convenient if the other buttons were near WASD. "Upgrades" could be the Q, E, R, or F key, and the potions could easily be the 1, 2, and 3 keys above WASD. Of course, feel free to do what you see fit.
• About the upgrade prices... I'm indifferent about it. I think there's smth strange about it, but someone else may have a different opinion. 

And that's all. If you read this, thanks. And if you consider it helpful, even better. I wish you luck on game devving, if you're still doing it.