FoonLudum Dare ExplorerLD59 → Harmonic

Harmonic

By whiteowl4399, Alvminum, , kanhao, and

View on ldjam.com

CategoryRankScoreCount
Overall304.2563
Fun514.1064
Innovation244.2963
Theme734.3263
Graphics784.4665
Audio1094.0462
Humor1773.5458
Mood1534.0960

Comments

yueyao-wang 2026-04-20 23:43

Interesting card game! I like the idea of changing the shape, the A & B counfuses me a little bit but the tutorial is pretty easy to understand. Nice work!

laurlehepuu 2026-04-20 23:54

Im pretty big on deckbuilder games like this so this kinda game is right up my alley. Really good job with the visual feedback. The whole wave altering approach to attacking and defending could very easily have been super complicated to understand, but i think you all did a good job simplifying it (thank you for having a tutorial at the start). The soundtrack and art are also really cool. I would love to see this idea get more fleshed out with more cards and such if you ever have the time! :)

majomirez 2026-04-20 23:56

I loved the concept! Deck building, Slay the Spire style, but with sound waves that represent attack and defense, it's a clever approach! I found some cards seems to be downgrades..? (I didn't find any use for "Clamp" for example), but overall I really liked it! Also the art style is unique and cute

whiteowl4399 2026-04-21 00:54

@majomirez Previously, we set the boss's attack power very high, and Clamp could be used to forcibly reduce the monster's attacks. But that seemed a bit too difficult, so now after the monster's attack power has been lowered, it seems to be of no use.

whiteowl4399 2026-04-21 00:55

Thank you for liking our game! As our first jam experience, your appreciation really means a lot!。(*´∀`)ノ

thecoconutdream 2026-04-21 08:19

Absolutely amazing. Crazy what you did in this short time. It looks incredibly good and I looove your concept of the game! Good job!

capreola 2026-04-21 08:30

I really really liked this one! I enjoy deck builders and this is such a fun take on the genre. And the artstyle is so cool. I liked that you showed the math formulas too, not just the graphs. Also great job with the tutorial, it was very easy to understand.

awwwz 2026-04-21 09:08

maybe a more unified color palette? I think the colors seem a bit too much for me. love the demonstration of the sound wave!!

2026-04-21 09:23

令人惊叹的完成度!也很扣主题,攻击和防御的计算方式富有新意,动画和音乐也很劲爆……非常完美!

2026-04-21 09:33

非常棒的创意,操作反馈做的也很好,非常喜欢每次选中卡牌时候波形的变化效果,在这么短的时间内做出这样创新的游戏很棒

2026-04-21 10:04

非常好玩的游戏!72小时有这样的完成度非常惊艳,跟函数的结合超级有创意!

2026-04-21 12:34

让人感到惊艳的创意和完成度,音乐和美术的风格也和主题结合的非常棒!好玩!

2026-04-21 13:16

Such an innovative tryout combining rhythm and art so well! It's hard to believe it only took three days

destic 2026-04-21 13:48

Absolutely gorgeous game, both art & audio wise! And I love the idea of adjusting waves to handle damage & defense, I could really imagine this becoming a fully fledged game. Nice work guys!

2026-04-21 13:59

The game is visually very cool! But the idea of graphs is cool. But the gameplay is a bit stifling, and random. It's so cool. Interesting enemies

kevin-meissner 2026-04-21 14:07

I love these kind of games, very nice, thanks :-)

jackofcups 2026-04-21 14:20

You've made math fun and I don't know how to feel about that. Nice work!

tay-elenberg 2026-04-21 14:54

art is very good and gameplay is very unique and fun gooooood job!

carsten 2026-04-21 15:19

Ohh that is a great concept. Really love it! :smiley:

nkvz 2026-04-21 15:25

wow. visual ultimate?)

rinnnzy 2026-04-21 15:37

吾去完成度好高,甚至还有教程关卡。喜欢游戏的美术风格!!(就是玩的时候让我联想到大学物理实验了...好像滤波器

lukas-leder 2026-04-21 16:21

Super cool game, nice music and a really awesome game mechanic, a bit short but really love it!

hjmw 2026-04-21 19:18

Really cool game! I would love to see some weirder card effects, like turning from a regular sine wave to a square wave

jawdan 2026-04-21 19:20

Felt a little bit unbalanced,, but I loved the art/humour and had so much fun playing with getting the signals just right!! Amazing work!

owi 2026-04-21 19:22

Interesting way of presenting the theme, core game mechanic of adjusting the math fucntion seemed extremely scarry at first, but good visualisation helped a lot! The music was good too, not distracting and enjoyable, however the web version have audiocracking from time to time

neshtyak 2026-04-21 19:22

Super chill game, I've played it with pleasure. The graphics and sound combine really good. As it is already said in the comments above, you've managed to make math fun :thumbsup:

dywanix 2026-04-21 21:31

very fun!

kanhao 2026-04-21 22:06

@rinnnzy 谢谢喜欢我们的游戏,我们对于顶部ui的设计就是参考音乐制作里的滤波效果器的()

kanhao 2026-04-21 22:13

@hjmw Thank you for enjoying our game! We have made numerous changes to the boss's waveform; the boss will display a different waveform in each round, and players can also modify their own waveform through certain Special Transforms. We plan to introduce more complex wavetables in future updates!

stalemeat 2026-04-21 23:00

Great looking the game. The presentation is very well done. I ended up just looking at the numbers over the heath bars instead of trying to figure out the math from each card or what the wave looked like. At least the results were clearly labeled, so thanks for that. Solid polished entry. Great work.

shivvvy 2026-04-22 07:31

好高的完成度!喜欢美术风格❤️❤️双语设置好评👍👍👍就是波形的设置好像数学计算费脑子哈哈哈

gil4 2026-04-22 09:06

A wonderful concept and high-quality implementation, would love to see it as an actual full release with more content!

drydiamond 2026-04-22 11:24

Exactly my type of game (fan of Slay the Spire here) and it was well executed !

2026-04-22 12:44

双语太好了,被美术吸引进来,最后一个喇叭好难打!喜欢结算画面(墓碑合影.jpg)波形参数真的幻视线性代数和高数,策划老师很爱高数吗?(握拳)

2026-04-22 15:08

哇!好好看的画风,很有意思的机制,完成度很高

tosmaster 2026-04-22 16:16

They say you have to end the game with the audience wanting more. And gues what.... I WANT MORE!! There is so much love and passion in the game! The animations... the mechanics! The whole idea of a sin wave as attack / defence! Please develop this idea more and release it as a whole game! I really want to see more of this and how it develops and explores the main mechanic! Great stuff overall!

flowerfield-games 2026-04-22 16:17

My head hurt with all this math. What an original concept ! Good job.

2026-04-22 17:23

Awesome game! Most card games are essentially math and this amplifies that concept, *literally*!

kate-arty 2026-04-22 18:43

I’m not sure I fully understood what I was supposed to do, but I really loved the game’s visual style! It’s super bright and vibrant. It’s impressive how much you managed to get done!

wormkingboo 2026-04-22 22:04

It is amazing that you made math so fun! I made it to the end of the game and wished there were more levels because it was so enjoyable. The art is gorgeous and the music works well with the rest of the design. Great work!

yuriscat 2026-04-23 06:16

What a cute game! I love the character designs, they're all so creative. But the moment I see those math formulas, I get sleepy lol omg. Haha, great game though!

很可爱的游戏Owo喜欢老师们的角色设计——!!但是唉一看到公式我就想zzzz了哈哈,很棒的游戏。颜色也用的很明亮!喜欢!!

skysakura2005 2026-04-23 08:44

I like the idea of wave signal card game!!! Welcome to play and rate our game!!!

kanhao 2026-04-23 09:32

@phanes 谢谢喜欢!最开始和高数结合的点子是程序老师想的()非常的理科思维哈哈哈哈

kanhao 2026-04-23 09:33

@tosmaster We will!

2026-04-23 16:48

I was just playing Slay the Spire. This is a really cool concept for a game. I think I'd play a full version if it was completely polished. Also the jewish draw pile button perturbed me xd

irkar 2026-04-24 09:54

Great visual and very cool math mechanic. Great job!Screenshot_20260424_125148.png

2026-04-24 11:09

完成度好高的游戏!类型也是我非常喜欢的rougelike,看到三角函数的时候死去的高中回忆全都复活了lol 音乐也很带感,总体超棒!

universeflow 2026-04-24 16:50

yay another music game! making the signal with cards is a fun and innovative way to do combat. I especially love that you show the formulas that make up the waveform :)

2026-04-24 17:29

有点无敌了说实话,玩法真的牛,通过波函数的变换来达到攻防的平衡(但这样也导致了攻防有上限),有意思。如果能显示敌方的波形图,设计一些改变敌方函数的卡片就更好了。美术也很生动,卡牌的设计也很合理,作为一个三天的作评来说真的很厉害。顶礼膜拜了。 Honestly, this game’s absolutely phenomenal. The gameplay is brilliant—balancing offense and defense through wave function transformations is such a clever idea, though it does cap how strong both sides can get, which makes it even more interesting. It would be even better if it could display the enemy’s waveform, along with cards that can alter their functions. The art style is vibrant and vivid, and the card design is well thought-out and balanced. For a game made in just three days, this is truly outstanding. Total respect!

igor-korobeinikov 2026-04-24 17:49

Really nice interpretation of a theme! Also magnificent art and interesting gameplay, though a bit hard for me to understand at the beggining. In any case - wonderfull game. GOOD JOB

ingviild 2026-04-24 18:07

At first, I was really intimidated by these algebraic function graphs.

But in reality, everything turned out to be a little simpler and more fun than it initially seemed! (Or maybe I just didn't want to delve too deeply into it to figure out really good moves.)

Very exciting music and nice graphics!

kanhao 2026-04-24 19:49

@yesterday 谢谢喜欢♪(・ω・)ノ,敌方的波形其实在上方已经用不同颜色的虚线显示出来了哦。关于改变敌方波形,我们设计了一张限制卡,功能是将敌我波形同时限制在一个高度,在后面有概率能随到~我们将会完善这个作品加入更多的卡ʢ˶ᵒ ᵕ ˂˶ʡᶻ

2026-04-25 02:56

The background sound is a good choice, mixing "math" with the theme? such an innvotive concept! I have to admit that I quite didnt understand it, but hey, the visualization help me a lot, I even thought that it would be great to get familiar with functions.

2026-04-26 08:12

It's a really amazing design and the game guidance is particularly clear! I also really like the art. I'm a musician and when I saw this game, I felt a strong sense of immersion. How could they understand so well? Hahaha. But in reality, it would probably be very heart-wrenching, hhh.

hulien22 2026-04-26 20:56

Fantastic game!! I really love deckbuilders, and this is such a fun twist on the genre! Would love to see how far this idea can go with more enemies and cards!

pipetto 2026-04-27 09:38

A really cool concept! You can tell a lot of work went into it.

indiepanda 2026-04-28 10:48

Cool art. An unusual implementation of a card battler

mikan 2026-04-30 11:14

Interesting mechanics. It determines the values based on the area. Due to the limited number of cards, in most cases, I have to choose between attack and defense. The game process is a bit short, I need more content.

ao-85 2026-05-06 19:14

The game is visually very cool! But the idea of graphs is cool. It’s so cool. Interesting enemies