December 13th-16th 2013 :: Theme: You Only Get One

[ Real World Gatherings | Ludum Deals | Warmup Weekend ]

Back to Browse Entries

Shooting Atoms For Peace

by Denis Chakarov - Jam Entry

Puzzle game where you should break all atoms to start nuclear reaction.
You can click on the cannon and the atoms to rotate them.
You got only one neutron to shoot - of course!

Post Jam version link's Changelog

Version 0.1 - updated 20.Dec.2013:
- resetting of rotations after "Replay" has been dropped (thanks to player's feedback)
- levels are sorted by difficulty
- two more levels to become total of 13,in honor of LD's starting date :)
- some levels which were too easy are changed a bit
- mute sound and music is stored and persists across playing sessions
- double music bug after the game is beaten - fixed
- after the game is beaten - you can reset it and start from Level 1
- collisions bug fixed - atoms sometimes exploded without a center hit from neutron


Denis Chakarov - programming
Maria Lambova - level design
George Strezov - music

Javascript Engine: Phaser
Sounds: Sfxr

Free art used from:
- chabull
- Buch

Downloads and Links




SkyWolf says ...
Dec 17, 2013 @ 8:44am

I rather liked it, only one thing i didn't like, the difficulty was not consistent:
1) medium
2) easy
3) very easy
4) easy
5) hard
what's up with that? :P

Xeke_Death says ...
Dec 17, 2013 @ 9:13am

That is a sweet game..! Nice work..!

I was waiting for the colours to start having an effect...
Also, when I reached the end and tried to start again, a second instance of the music started playing, and it said I was in level 12, and had a permanent Failed screen...

harsanalif says ...
Dec 17, 2013 @ 10:18am

Nice chain reaction games! Having double music running on my laptop. More level and item type will be great!

Dec 17, 2013 @ 4:20pm

@SkyWolf, thanks! Yes we, didn't get to sort the levels by difficulty.

@Xeke_Death, thanks! That is an interesting idea about the colors. The level 12 and the music are bugs, I'll fix them in a post-jam version :)

@harsanalif - the same about the music bug. Hopefully we'll add more levels if we continue it.

Cbeed says ...
Dec 17, 2013 @ 4:45pm

I can agree on what SkyWOlf said:
1) medium
2) easy
3) very easy
4) easy
5) too hard

I would have tried more times if not every time the level would reset.
I found it hard to see where the neutrons were going even there was a grid. Maybe some sort of mouse-hover effect would help.
I won't rate the art because I don't know which of the sprites are your work. I can just say that they are good chosen. ;-)
Nevertheless of my critique I liked it. Pretty solid work.

Dec 17, 2013 @ 4:54pm

Good puzzle game. Would be nice if the atoms and cannon keep their position after a retry.

Diptoman says ...
Dec 17, 2013 @ 6:26pm

Level 5 after level 4 was uhh... D:
Is that even crossable? Tried many variations, but couldn't get past, and I really wanted to play the whole thing. :(

The concept is really cool, the graphics are fitting and I'm digging the track otherwise!

Dec 17, 2013 @ 7:59pm

@Cbeed - thanks for the feedback!
After reading what koller-digital wrote, I think you maybe right about the resetting of the level. It probably creates more useless burden for the player than "joy of beating the hard difficulty".

@Diptoman - yes that's beatable! But really takes some thinking...
Thanks for the kind words!

antila says ...
Dec 18, 2013 @ 5:47pm

Fun little game! If I could change one thing it would probably be to keep the position of all things between tries. But other than that it was great!

jdpalmer says ...
Dec 18, 2013 @ 5:56pm

Very enjoyable little game.

Nazariglez says ...
Dec 18, 2013 @ 6:18pm

This game is a jewel, but i think the first level is quite hard than others, however good job, i love it!

Almax27 says ...
Dec 18, 2013 @ 6:27pm

Nice concept, but poorly executed. I agree with the remarks on difficulty progression as well as the rotations of nodes reseting when you press 'retry' was confusing and frustrating, I could see this being quite addictive if done right though :D

Aaants says ...
Dec 18, 2013 @ 10:47pm

Cool game. It'd be good if the cannon (and maybe the atoms - but that could make it too easy) kept the rotation after each shot. I spent ages plotting out a level only to have the cannon fire off in its default direction, screwing it all up :(

_zulli says ...
Dec 18, 2013 @ 10:48pm

Great idea! But really confused way to design levels. More organized ones and increasing difficulty would be better! :)
Nice work!

Claw says ...
Dec 18, 2013 @ 10:48pm

Nice concept, agree the difficulty was a bit erratic and some levels you didn't even need to move anything, just press shoot. Level 10 was really good and challenging, then the final level was very easy in comparison. And also agree it would be better to not revert all your moves back when you retry a level.

Anyway overall an enjoyable game, nice job!

Small bug: After you finish the game the music starts playing twice

torcado194 says ...
Dec 18, 2013 @ 10:50pm

interesting concept! i liked it. maybe adding a reset to default function along witht he saving rotations after failing would be good

baton4ik says ...
Dec 18, 2013 @ 10:50pm

Very neat game. I have only two complaints:
1. The game is too easy, too the point where you don't even have to do anything on some level (even on the later ones, level 7, for example)
2. The level state resets when you "lose" and you have to rotate everything again.

MrTedders says ...
Dec 18, 2013 @ 11:35pm

Nice puzzle game but the difficulty curve was very inconsistent.

chiguireitor says ...
Dec 19, 2013 @ 12:02am

As others have said: difficulty was weird. Also, it would be über-cool if the atoms rotations didn't reset on restart. I don't know if part of the mechanic is remembering how did you spin those atoms, but it was a process mostly of trial and error. You could, for example, allow shooting more times, but give an special award for making the level with the least shoots, or the fastest time to reaction.

mortus says ...
Dec 20, 2013 @ 4:11pm

Very nice and polished game. The difficulty curve was strange indeed but otherwise it's a hit.

Dec 20, 2013 @ 4:28pm

Thank you guys for the feedback!
I've uploaded a post-jam version where most of the issues are addressed - check the details on top.

@torcado194 - yes i thought of adding "reset" after I made it to keep the positions (as everyone seems to wanted it). but it's still missing. for now you can do it by refreshing the webpage, it will keep your progress but reset your level.

@chiguireitor - Allowing more shoots would negate the theme, you only got one neutron to start the reaction :) Otherwise, outside of the theme it's an option. The fastest time for reaction and counting less rotations is also a thing I thought about. Definitely would go in if I continue the game.

chiguireitor says ...
Dec 20, 2013 @ 9:22pm

Indeed multiple shots would break the theme. I think this is the kind of puzzle that would probably thrive on mobile, does your codebase support that?

sadiquo says ...
Dec 20, 2013 @ 10:51pm

Great game!

Jgpicatoste says ...
Dec 21, 2013 @ 11:48am

I liked the style and the SFX, I liked the mechanics and the level design, but I didn't like at all the difficulty curve. Fix that and you'll have a great game.

netmute says ...
Dec 21, 2013 @ 1:52pm

Nice art.
I had a strange bug where the same settings didn't always produce the same result. (i.e. something flying in one direction sometimes hit things on its path, and sometimes it didn't)

2HitAdam says ...
Dec 23, 2013 @ 10:14am

Really tight game, and stupidly addictive. Well done :)

Tanser says ...
Dec 23, 2013 @ 6:16pm

Nice game, i like it! :)

gnargle says ...
Dec 23, 2013 @ 6:19pm

Pretty great puzzle game. Really enjoyed it. Would help if it was more obvious when molecules weren't aligned with each other, though, so you can plan better

TheWhiteLlama says ...
Dec 23, 2013 @ 7:43pm

Wow, very nice game indeed! Very enjoyable puzzle which is easy to understand :) The chain-reactions are also pretty cool to watch. The music is awesome by the way! One of the most harmonious games so far

ViliX says ...
Dec 24, 2013 @ 11:22am

Interesting idea :)

Myyyvothrr says ...
Dec 24, 2013 @ 12:43pm

Fun game, really liked the music!

henrykun says ...
Dec 25, 2013 @ 11:41pm

Awesome game, nice mechanics, addictive, nice graphics and sounds / soundtrack. Planning to release it on mobile devices? it could be a good idea.

Husky says ...
Dec 26, 2013 @ 4:01pm

Cool puzzle game!
Really enjoyable, good job. :D

steamgirl says ...
Dec 28, 2013 @ 12:38pm

Fun and addictive puzzle! The audio didn't work for me for some reason (so I haven't rated it) but that didn't impact my enjoyment at all. A solid LD entry, fun to play and original! Well done!

Dec 30, 2013 @ 7:36am

Thank you everyone for the comments and the feedback!

@chiguireitor - yes, being javascript game it will run on mobile. Phaser has some resolution detection methods too, but I'll probably rewrite it in another tech for mobile.

@netmute - yes, this bug is happening in the original version. In the post jam one it's fixed.

@henrykun - yes, I am thinking about mobile version.

@steamgirl - thanks for the kind words! In what browser did you play it? I forgot to write it's best played in Chrome or latest FireFox. There you should have audio too.

Binary Gambit says ...
Jan 2, 2014 @ 11:57am

Solid little puzzle game, only complaint is that the background pattern made discerning the projectile path a little difficult.

GarethIW says ...
Jan 2, 2014 @ 12:43pm

Nice solid game, I played the post-Jam version as I couldn't figure out the first level of the Jam version. But it's a lovely made puzzle game, which you don't see too often in LD.

StMatn says ...
Jan 2, 2014 @ 3:57pm

Great game!
I believe, that you yould sort the levels a bit differently, because I had the feeling, that the dificulty was swinging up and down a little.
Besides that, the graphics look great and the music is nice too.
Nice work, keep it on :)

Cawrtz says ...
Jan 3, 2014 @ 12:40pm

This is fun, but I don't like how the configuration of the atoms resets when it fails :/

van noctar says ...
Jan 3, 2014 @ 11:21pm

Great gameplay! Level 11 is very very hard!!

van noctar says ...
Jan 3, 2014 @ 11:28pm

A little bug! When the game is finish and replay! There is an increment level (level 12) and the game is empty.

rezoner says ...
Jan 5, 2014 @ 12:01pm

Yay. So many games with Phaser this LD. Shot guide lines would be useful - and persistent rotation state.

GaTechGrad says ...
Jan 6, 2014 @ 3:05am

Neat game. I really liked the chain-reaction concept.

burlapjack says ...
Jan 6, 2014 @ 7:29am

It was a fun game, although it started to get extremely difficult and a little bit brain-melting when I had to try to keep track of all the rotation combos that I hadn't tried yet. The music was amazing, and the sound effects were perfect.

Jan 6, 2014 @ 11:38pm

Very very fun! Special kudos for game design <3

You must sign in to comment.

IMPORTANT NOTE: If you want to place in the final results, you NEED votes. The easiest way to get votes is by rating other games. Judging lasts for 3 weeks following the end of Ludum Dare. For best effect, rate 20 games as soon as possible. Rating more games is encouraged.


TEAMS: Teams entering the Jam should pick a single representative to submit your game, or create a team specific account you can share. We currently do not support Team Voting, but sharing an account and together playing and rating games is acceptable.

NOT LOGGED IN?: If you get a message about not being logged in, even though you are, it’s because your web browser cached the non-logged in page. You can fix this by either refreshing your cache or clearing your cache. CTRL+F5 in many browsers. Chrome is a bit more work. Press F12 to enable Developer Mode, then you can right click on the refresh button and select “Empty Cache and Hard Reload”. This option is unavailable if you are not in Developer Mode.

PORTS: Ports to other platforms can be done after the deadline. That said, the sooner you finish your port, the sooner people can play your game, improving your chances of placing in the final results. For best results, provide a Web version of your game, or a Windows version with no dependencies. Also be sure to rate about 20 games to improve your visibility.

MY GAME DOESN’T SHOW UP: If you can’t find your game, it’s usually because the URL to your downloads are missing ‘http://‘. Fix your URLs ( and you will show up.

MY GAME CRASHES, IS UNBEATABLE, OR I MADE A TYPO: We allow you to fix crash or win condition bugs after the deadline (in a sense, like “porting” to support more players). We also allow “typo” bugs. I.e. A true that should have been a false, a word that should have been a different word, very tiny changes that you would have caught if you had more sleep. We leave this open to interpretation, but generally speaking your game should be identical to the game you submitted. No new features, just things you messed up last minute. Typos.

[cache: storing page]