Fun concept!

If I had to find something to complain about it would be how the flames dealing damage can make it so you only have to play the beginning of the exorcism and then move away from the keyboard until the boss is done.

As the flames stay there until you pass over with the mouse, you basically get a firewall that kills every single ghost.

What if the flames slowly crept towards the player? What if they despawned after a bit if not collected?

Had good fun playing it, though!

Super fun, loved it!

fun game, though taking the collection distance kinda just sabotages you due to how the flames can fight for you and you dont need it due to the auto-collection upgrade at the end. Was fun though, hope you expand this

No SFX? The horror!! No breaks allowed :P

It's fun how the power scaling goes nyooom. The skills really feel impactful, and not just a token "enemies get hurt more". The game became significantly easier when I unlocked the hover-to-activate. Towards the end though, the skills and the like don't feel as impactful anymore. For a jam though, I have nothing to add--you did great.

Future features could use probably...
- Varied/stronger enemies
- RPG-like classes? Eg a specialization per run, where you can focus more on ghosts busting other ghosts, or more on the flames busting the ghosts and the circles not outputting lights anymore. (I guess its very Kiwi Clicker.)

Thank you for the fun time. :D

Starts out pretty difficult. Swiftly became unstoppable. Very nice!

Agree with @Sui-hin Mak, start is a tad tedious while mid-late game you blaze through upgrades. Enemies providing no real challenge. Game Jame wise, it's a solid game.

Honestly, the only issue is the difficulty curve; next time what you can do, is give yourself all upgrades and set the stage to 10. Now adjust ghost health just enough so you barely finish stage 10, this is your end-game difficulty and final stage. Repeat same logic for stage 0(No upgrades) and stage 5(50% upgrades)... Add a non-winnable stage 15 if you want player to be able to finish an extra stage or two. If you want something more endless, after Stage 10. Increase ghost health by 2-10%? per extra stage after 10. I'd suggest ending the game at wave 10-12, endless only works if there is some infinite player upgrade or my favourite "last stand".

Create a 2D Curve in your given program with the values you calculated. 

X-Axis(Time) = Stage, Y(Value) = GhostHealth

For example:
stage 0 = 1HP  
stage 5 = 2.5HP  
stage 10 = 12.5HP  
stage 15 = 37.5HP

Now you can query the Curve Time(stage) to get the ideal GhostHealth or "Difficulty". Adjust curve handles and add more points as needed -- just like with animation, the more points(keyframes) you have the more time consuming and more restrictive adjustments become. Try to keep as few points as possible.

Ramps up slowly in the beginning and super fast mid-late game, due to the nature of incremental games and having lights hit every ghost in contact. They will need a lot of health to get anywhere close. 

Mid-Late upgrade costs most likely will have to be increased(Can use the same curve as above, just make sure to normalise it). Or reduce bonus soul value; player already gets more souls as Ghost spawn count is increased.

Extremely hard to get player engaged just👌, when upgrades tend to be exponential. Going from praying a gust of wind doesn't blow a white sheet in between your lights to nuking shadows out of existence with disco lights.

Found your game via Itch New & Popular; good luck with the Jam. Had fun playing it.

First of all, where's the SFX? hehe
As others said, starting speed :|
None of my lights aligned with the enemies in the first 2 runs which is not a good experience. Rest of the game was butter smooth. This game leans more towards chill incremental side of thigns which conflicts with the tower defense section of the game. If there's a tower defense mechanic at the core of the game, I personally prefer more challenge. But yeah as a demo, I think it proves that it has some potential even though it might need some radical changes here and there. Also, GOOD JOB TREVRON!

Enjoyable game. In terms of balance, I wished the start was less difficult and the upper levels were more difficult.

It took me several seconds to understand how to fire ( yeah kinda stupid I know :') ) so maybe a little tutorial.

Feel like the damaging flame is to op 

maybe a slowing down flame ? 

When to much flame on the screen , the game became laggy

But for the rest , I love the concept and the minimalism

it feels great to play. i think making it easy to get OP and then balancing until it's hard enough is a good approach to crafting a game around a "runs and upgrades" mechanic, so you're in a good place.

hover to fire is nice. a later upgrade that works with just the direction of the cursor from the center, and lets it be any distance might be a nice QOL addition (although maybe only on/outside the circle, to prevent players from rapidly circling around the origin hmm).

Thanks for making and sharing this!

Retro minimalism graphics looking good with the color scheme, roguelite meta-progression, creative gameplay design, upgrades, upgrades that are actually very cool. It has it all.

Tried a bit, and it has some serious potential. Concerning feedback:

1. Idea is amasing, and controls feels good.
2. Soundtrack is super cool, we need more of it.
3. Starting speed is waaay too slow, maybe at least increase it by 50%, or even double it.
4. Art is simple, but really cute.

Keep it going, its gonna be FAYAAA)