Venture deep into the Cavern of Longing. Plunge your sword deep into the dragon's heart! How deep is your resolve? Post your best times in the comments!

  • Feel the weight of a giant sword!
  • Move in ways you never thought possible.
  • Overcome your deepest struggles.

Created in 72 hours for Ludum Dare 48 Jam. The theme was "deeper and deeper". 

Join the Deepest Sword Discord!

If you鈥檙e speedrunning, submit a time on!

Note: The game may take a moment to load. If the game does not load you may have to enable WebGL on your browser.


  • Move - A and D
  • Sword - Mouse buttons or left and right arrows
  • Respawn - R
  • Full reset - 0 (zero)

** You can rebind your controls in the pause menu!


Developed by Cosmic Adventure Squad (@squad_cosmic) Support us on Ko-Fi (



  • v0.1.2
    • Jam submission
  • v0.1.3b
    • Fixed crash when spamming return to checkpoint
    • Added PC and Mac downloadable builds!
  • v0.1.3c
    • Added button to quickly fully reset the game for speed runners!
      • Press 0 to do a quick full reset without refreshing your browser.
  • v0.1.4
    • Added a pause menu where you can rebind keys and change other settings
      • You can now enable milliseconds display for speed running!
  • v0.1.4c
    • Added new options for our speed running community!
      • Added lap display and total time toggle for the x10 format.
      • Added starting stage selector to make it easier to practice.
  • v0.1.5
    • Updated menu UI! Better organization and credits page.
  • v0.1.5c
    • Added best time display on completion screen and Ko-fi link on Credits page. Buy us a coffee :D (if you want...)

PlatformsWindows, macOS, HTML5
Rated 4.5 out of 5 stars
(1,104 total ratings)
AuthorCosmic Adventure Squad
GenrePuzzle, Platformer
Made withUnity, Aseprite
Tags2D, Cute, Fantasy, Ludum Dare, Ludum Dare 48, Pixel Art, Singleplayer, Speedrun, Unity
Average sessionA few minutes
InputsKeyboard, Mouse
LinksSteam, Ludum Dare


Download NowName your own price

Click download now to get access to the following files: 23 MB 20 MB 33 MB

Development log


Log in with to leave a comment.

Viewing most recent comments 1 to 40 of 965Next pageLast page

how the heck do you even do length 2

Update got in it 6 minute 26 seconds new record for m :)

yo new best time 7 minutes and 38 seconds f yeah 

(1 edit)

10 out of 10 my time is 9minutes and 58 secondes it is astonishing that some people can do it in 3

btw last level is really hard

funny dragon dialoge

Hey there this is a really good game you have here. I really like the idea and I think it's cool but for me the sword mechanic is hard for me to use.

I love the dragon did it die please dont let it die ;-;

i think it suffered a much worse fate

I came for that pussy (cat)

Time: 25:27. Good game! Very difficult lol.

wow I wasn't expecting this level of difficulty, good game!


Harder than dark souls
first time 22:57

dude dont feel bad my first time was 1 hour 3o minutes lol

now my best time is 6 minutes 26 seconds

I made a video on your game (26:56)

(5 edits)

13:45 first try

9:13 second try

6:02 third try

6:16 4th try

5:42 5th try, accidentally pressed r

4:47 6th try, panic

7th try almost a 3 sub, messed up at the last part twice

ok i give up, cool game, feels just like "getting over it"

Bro I remember watching people play this game lol (I never knew it was available on mobile tho 馃槼)

This is the game of all time

Great game, great humor, enjoyed playing 馃檪

beat in 5:00 nice job tho. Lots of youtubers lately


thats too easy make this harder

5:00 lozers

16:02 Go fuck yourself

26:37 hated the game, loved the concept 10/10 i wanna die

i fucking hate this game especially the last stage its fucking impossible. i want to fucking eat dry wall and shit bricks. this game is like trying to tap dance with a tsar bomb. 8/10 im going to kill myself now. i hate  this fucking game so much.



joguin manero


This is the coolest concept. I hated it 10/10

i feel bad for the dragon =(

dw i think the dragon is into it

i know right lol

(1 edit) (+1)

24;17! I hate this game so much LMAO It's be cool if the game was longer though, it was a lot of fun EDIT: I tried again and got 14:53!!!


I hate this game. 10/10


Cool game!


Dude, I couldn't wait to stick my long gold sword in that bitch. She felt me.



Spent the first ten mins with a smile on my face, then after the last level had to go outside to calm down. 10/10

The last level broke me but I eventually completed it. 30:11—the longest time I've seen in the comments so far lol

First run of 18:55. Amazing game, would love it if there were a few more levels, even though I would hate it at the same time because of the difficulty. The last part of the last level was very tricky, but once I got the hang of it I managed to complete. 10/10 won't play again for now.


cant believe i spent half an hour playing this and i was able to beat it i enjoyed it but man never again 馃槀 i made a video on it, views and likes and subscribing is much appreciated Thankyou! Keep up the good work!

so cute 


Very cool Idea! I really like the art, as well as the music, and this has a lot of potential, but the controls are kind of annoying. Other than that though, I really like the idea

thats kinda the point


dumb stupid idiotic moronic pinhead dragon dragged me into this stupid mess when i die i jus wanna stab her around 234923423984729384894394729824 frickin times dsdhsjdjshhjhsjhdjshjshdshdshjksdfsjksak >:(


no way I just spent 1 whole hour on the 5th level... I like how excited I was to destroy the heart of the dragon at the end. Great game with amazing art and gameplay with jacky physics, overall its an amazing game, would recommend

22:57 ez

14:34, not bad for a first timer 

Viewing most recent comments 1 to 40 of 965Next pageLast page