# Community Challenge #5: Break It! ⛓️‍💥 **URL:** \ **Category:** Announcements\ **Created:** [February 1, 2026, 3:00pm UTC](https://forum.defold.com/t/community-challenge-5-break-it/82303 "2026-02-01T15:00:35Z")\ **Posts on this page:** 18\ **Page:** 2
**Author:** ![Ivan](https://forum-defold.b-cdn.net/user_avatar/forum.defold.com/ivan/32/37502_2.png) [@Ivan](https://forum.defold.com/u/Ivan)\ **Post date:** [February 20, 2026, 11:18pm UTC](https://forum.defold.com/t/community-challenge-5-break-it/82303/21 "2026-02-20T23:18:35Z")
Wow! Did your kids play it? I’m amazed! Thank you! Do you think if I put in more time and polish this could be accepted by Poki? ---
**Author:** ![kuyimobile](https://forum-defold.b-cdn.net/user_avatar/forum.defold.com/kuyimobile/32/34569_2.png) [@kuyimobile](https://forum.defold.com/u/kuyimobile)\ **Post date:** [February 21, 2026, 10:53am UTC](https://forum.defold.com/t/community-challenge-5-break-it/82303/22 "2026-02-21T10:53:35Z")
**Break It: Holey Moly** ![Screenshot 2026-02-21 at 6.47.01 PM](https://forum-defold-uploads.b-cdn.net/original/3X/4/f/4f164c7987dc1c610876250faf75be27565e3d73.jpeg) Made this small game when I was trying to learn Defold’s joints and collision shapes. It’s reminiscent of those funny Japanese hole-in-the-wall TV variety games. The goal is to rearrange the stick figure’s limbs to match the incoming hole shape by clicking and dragging the designated touch points. Happy playing! 😊 **Game:** [https://kuyimobile.itch.io/holey-moly](https://kuyimobile.itch.io/holey-moly) **Github:** [GitHub - kuyimobile/Defold-Physics-Challenge: Defold Challenge #5 (Physics) · GitHub](https://github.com/kuyimobile/Defold-Physics-Challenge) ---
**Author:** ![Pawel](https://forum-defold.b-cdn.net/user_avatar/forum.defold.com/pawel/32/24623_2.png) [@Pawel](https://forum.defold.com/u/Pawel)\ **Post date:** [February 21, 2026, 11:05am UTC](https://forum.defold.com/t/community-challenge-5-break-it/82303/23 "2026-02-21T11:05:22Z")
> [@Ivan](#): > > Wow! Did your kids play it? I’m amazed! Always! They’re the best playtesters 😅 👌 And believe me, amount of fun they have is astonishing, they’re laughing all the time 🤣 ![20260221_120355](https://forum-defold-uploads.b-cdn.net/original/3X/9/1/9196f94a9e86e1d56d38ee4ec7f4c185bbbfee32.jpeg) ![20260221_115914](https://forum-defold-uploads.b-cdn.net/original/3X/c/2/c2047c80c327d84cfe6d7d52927aa9fb3c3d255f.jpeg) ---
**Author:** ![britzl](https://forum-defold.b-cdn.net/user_avatar/forum.defold.com/britzl/32/23_2.png) [@britzl](https://forum.defold.com/u/britzl)\ **Post date:** [February 21, 2026, 2:26pm UTC](https://forum.defold.com/t/community-challenge-5-break-it/82303/24 "2026-02-21T14:26:50Z")
> [@kuyimobile](#): > > Happy playing! 😊 The game area is cropped for me: ![CleanShot 2026-02-21 at 15.25.47@2x](https://forum-defold-uploads.b-cdn.net/original/3X/6/2/623a6a6abf3f26cc075f28ee12671fc97cef1013.jpeg) ---
**Author:** ![Mathias](https://forum-defold.b-cdn.net/user_avatar/forum.defold.com/mathias/32/44015_2.png) [@Mathias](https://forum.defold.com/u/Mathias)\ **Post date:** [February 21, 2026, 2:52pm UTC](https://forum.defold.com/t/community-challenge-5-break-it/82303/25 "2026-02-21T14:52:23Z")
Me too on mobile ![Screenshot_20260221_155049_Firefox](https://forum-defold-uploads.b-cdn.net/original/3X/5/b/5b94f85296ffe2016d8efba541f7e608e5b13a03.jpeg) ---
**Author:** ![kuyimobile](https://forum-defold.b-cdn.net/user_avatar/forum.defold.com/kuyimobile/32/34569_2.png) [@kuyimobile](https://forum.defold.com/u/kuyimobile)\ **Post date:** [February 21, 2026, 11:45pm UTC](https://forum.defold.com/t/community-challenge-5-break-it/82303/26 "2026-02-21T23:45:01Z")
Oops, sorry! @britzl @Mathias Can you please try again? ---
**Author:** ![kuyimobile](https://forum-defold.b-cdn.net/user_avatar/forum.defold.com/kuyimobile/32/34569_2.png) [@kuyimobile](https://forum.defold.com/u/kuyimobile)\ **Post date:** [February 21, 2026, 11:46pm UTC](https://forum.defold.com/t/community-challenge-5-break-it/82303/27 "2026-02-21T23:46:39Z")
So cool to see your kids playing the games!! 😊 ---
**Author:** ![JuLongZhiLu](https://forum-defold.b-cdn.net/user_avatar/forum.defold.com/julongzhilu/32/42720_2.png) [@JuLongZhiLu](https://forum.defold.com/u/JuLongZhiLu)\ **Post date:** [February 22, 2026, 2:49am UTC](https://forum.defold.com/t/community-challenge-5-break-it/82303/28 "2026-02-22T02:49:17Z")
very insteresting ! I love to play it. ---
**Author:** ![Mathias](https://forum-defold.b-cdn.net/user_avatar/forum.defold.com/mathias/32/44015_2.png) [@Mathias](https://forum.defold.com/u/Mathias)\ **Post date:** [February 22, 2026, 10:09am UTC](https://forum.defold.com/t/community-challenge-5-break-it/82303/29 "2026-02-22T10:09:16Z")
Thanks it works fine now! Really nice game, I’ll check the code never used joints before ---
**Author:** ![jeanstkng](https://forum-defold.b-cdn.net/user_avatar/forum.defold.com/jeanstkng/32/42583_2.png) [@jeanstkng](https://forum.defold.com/u/jeanstkng)\ **Post date:** [February 25, 2026, 5:51am UTC](https://forum.defold.com/t/community-challenge-5-break-it/82303/30 "2026-02-25T05:51:20Z")
### Tentacle Thing Hi! tried to do a Carrion-like project, I always wondered how it was done with all the tentacles and particles going through walls. I am pretty sure that it was built using a custom engine so they might have control of every pixel and that’s why even sections of the tentacles are able to collide with walls, tried a lot of ways, static tentacles, tentacle composed by multiple game objects doing some kind of ropes with fixed joints (this crashed many times so I just dropped it). Lastly I just asked an AI if there was a different way and that’s how I ended up with the mesh generated tentacles. Repo: [GitHub - jeanstkng/def-carrion-physics: A Defold Project where I try to mimic Carrion Game Physics with tentacle movement. · GitHub](https://github.com/jeanstkng/def-carrion-physics) Game: [Tentacle Thing by jeanstkng](https://jeanstkng.itch.io/tentacle-thing) ![physics_carryon](https://forum-defold-uploads.b-cdn.net/original/3X/9/4/94d51e98ab5cdadd9b5f2de83c28308e6e6da1ce.gif) ---
**Author:** ![Mathias](https://forum-defold.b-cdn.net/user_avatar/forum.defold.com/mathias/32/44015_2.png) [@Mathias](https://forum.defold.com/u/Mathias)\ **Post date:** [February 25, 2026, 6:20am UTC](https://forum.defold.com/t/community-challenge-5-break-it/82303/31 "2026-02-25T06:20:19Z")
Wow I really love it! Have a “Life” SF movie feel 😅 and the bleeding effect is really cool! Need to see the code, is it a shader effect or tile(map) changing? (EDIT: OK I just need to read the readme 😆) This creature could be a freaking enemy in an action game 😄 if you change the sphere to a space-octopus head I wanted to make a game where the female character use her hair to grab things and hang on the ceil, this could be a good starting point! ---
**Author:** ![Sam](https://forum-defold.b-cdn.net/user_avatar/forum.defold.com/sam/32/41902_2.png) [@Sam](https://forum.defold.com/u/Sam)\ **Post date:** [February 26, 2026, 8:52pm UTC](https://forum.defold.com/t/community-challenge-5-break-it/82303/32 "2026-02-26T20:52:00Z")
I pushed a small update to the “my wagon thing”. Now there is turbo with W and you eventualy can hit the finish. My best score is ~~10.923~~ 10.859 sec 🏁🚗 ---
**Author:** ![Pawel](https://forum-defold.b-cdn.net/user_avatar/forum.defold.com/pawel/32/24623_2.png) [@Pawel](https://forum.defold.com/u/Pawel)\ **Post date:** [March 3, 2026, 12:48pm UTC](https://forum.defold.com/t/community-challenge-5-break-it/82303/33 "2026-03-03T12:48:36Z")
Thank you very much for all your submissions! 🧡 This time the competition was though and it was very hard for us to decide on the winners (1 vote decided in each category!), so congratulations! 🥳 - 🚀 Best Technical: **Tentacle Thing** by @jeanstkng - 🎨 Best Visual: **Wooden Wagon** by @Sam - 🐣 Best First-time: **Flip-Flop Football** by @Ivan Each of you will receive a 25 EUR Steam gift card! 🎁 I will contact you via DM here, so please answer 😉 ![commchallbreak](https://forum-defold-uploads.b-cdn.net/original/3X/6/c/6c92dccf0790ec69bba9ebf235acbc5ae83e13ad.jpeg) ---
**Author:** ![Sam](https://forum-defold.b-cdn.net/user_avatar/forum.defold.com/sam/32/41902_2.png) [@Sam](https://forum.defold.com/u/Sam)\ **Post date:** [March 3, 2026, 2:02pm UTC](https://forum.defold.com/t/community-challenge-5-break-it/82303/34 "2026-03-03T14:02:33Z")
Thank you so much for the award! I had a blast putting this together. ---
**Author:** ![Pawel](https://forum-defold.b-cdn.net/user_avatar/forum.defold.com/pawel/32/24623_2.png) [@Pawel](https://forum.defold.com/u/Pawel)\ **Post date:** [March 12, 2026, 12:33pm UTC](https://forum.defold.com/t/community-challenge-5-break-it/82303/35 "2026-03-12T12:33:27Z")
_Poll ([view on site](https://forum.defold.com/t/community-challenge-5-break-it/82303/35))_ ---
**Author:** ![Pawel](https://forum-defold.b-cdn.net/user_avatar/forum.defold.com/pawel/32/24623_2.png) [@Pawel](https://forum.defold.com/u/Pawel)\ **Post date:** [March 17, 2026, 10:08am UTC](https://forum.defold.com/t/community-challenge-5-break-it/82303/36 "2026-03-17T10:08:38Z")
Alright, so expect the next challenge pretty soon! 😃 ---
**Author:** ![Mathias](https://forum-defold.b-cdn.net/user_avatar/forum.defold.com/mathias/32/44015_2.png) [@Mathias](https://forum.defold.com/u/Mathias)\ **Post date:** [April 1, 2026, 10:06pm UTC](https://forum.defold.com/t/community-challenge-5-break-it/82303/37 "2026-04-01T22:06:33Z")
Hi everybody! I know this challenge is over since a long time, but I wanted to share the thing that I started with this challenge and that is playable now. I have completely give up the idea to respect any deadline in this matter, but I am still doing it at my own pace! I love theses challenges. So here is a new version of my Tiny Games! > **[TinyGames 1.1.0](https://mathias-a-la-basse.github.io/games/TinyGames/index.html)** I will one day make an entry in the dev diaries topics, but when I will be ready. TinyGames is a mean for me to learn Defold and be a bit more productive…because at the beginning I was creating a new project each time I would try something, but lose much time starting again and again. I couldn’t build up on what I’ve coded before.. So I build this project as a games portal, I have a bootstrap collection and some common libs that I share between games and augment as I learn Defold, then I have a dedicated folder for each games where I can try and learn specific topics in the context of a small game (this would be a good case for LiveUpdate… but in a future version!) For now I made - **Baveur Vert** 👻: a space shooter with a green slobber ghost fighting sushi and food! - my first game. I learned inputs mapping, enemy spawning, first GUI hud, defold-events, virtual pad on mobile, gamepad on anbernic console with android version - **Mochi Fight!** 🍜 🍤_(comming soon!)_ : this will be a fighting game of japanese food! - I am still working on it, I want to implement a combo system and multiplayer game - but it seems it is a harder thing to do that I thought! But today I present to you my new tiny game, **Blob Planet!** 👽 🦠 I started it with this challenge, this is my first game using physics. First time also using runtime mesh generation and shaders. So the concept is that you play a space Blob exploring the universe and just eating stuffs to expand and expand and expand! But beware of physical forces that will rip you apart and many dangers! - Move with arrows (it creates a force towards arrow direction) - or on mobile just touch the direction you want to go (it create a force towards the touch) - if you are lost, double-hit rapidly backspace / back on mobile to go to title screen. This is more a proof of concept than a game. For now I have: - Mr. Blob, which is a collection of many objects: - a core objects, the center, with a dynamic collisionobject - a factory that produces externals nodes around my core with dynamic collisionobjects too - every nodes are joint to the core with a physics joint - every nodes are joint to their neighbour with a physics joint - so the structural integrity depends on theses joints - the number of nodes and the radius of joints and the properties of the joints (frequency) are configurable with script properties - then over this structure, I generate at runtime a mesh with a vertex on each collision object, it is a fan triangulation - so I move objects in fixed\_update(), and update mesh vertices/material variables in update() - the mesh use a material with a fixed noisy texture, but the texture is used twice with moving uv at different speeds, so it’s kind of organic. I also use 2 tints for light and dark green color, and another glow color (which handles time too) for the rim effect. This is the shader: ```lua #version 140 in mediump vec2 var_texcoord0; uniform mediump sampler2D tex0; // uniform uniform fs_uniforms { mediump vec4 tint; mediump vec4 tint2; mediump vec4 glow_color; // glow_color.w = time }; out vec4 out_fragColor; void main() { // Pre-multiply alpha since all runtime textures already are mediump vec4 tint_pm = vec4(tint.xyz * tint.w, tint.w); mediump vec4 tint2_pm = vec4(tint2.xyz * tint2.w, tint2.w); // 1. Calcul de la distance par rapport au centre (0.5, 0.5) // On suppose que UVs sont bien mappés de 0 à 1 sur le cercle vec2 uv = var_texcoord0 - vec2(0.5); float dist = length(uv) * 2.0; // 0 au centre, 1 au bord // --- texture noise -------------- float time = glow_color.w; // 1. On fait défiler deux couches de bruit à des vitesses différentes vec2 uv1 = var_texcoord0 + vec2(time * 0.05, time * 0.03); vec2 uv2 = var_texcoord0 - vec2(time * 0.02, time * 0.04); float noise1 = texture(tex0, uv1).r; float noise2 = texture(tex0, uv2).r; // 2. On mélange les deux pour un effet de "liquide" complexe float final_noise = (noise1 + noise2) * 0.5; dist += (final_noise - 0.5) *0.2; // ------------------------------------- // 2. Création de l'effet "Rim Light" // Plus on est proche du bord (dist = 1), plus c'est brillant float rim = pow(dist, 5.0); // 3. Simulation de translucidité // On veut que le centre soit un peu plus sombre ou transparent float alpha = smoothstep(1.0, 0.0, dist * dist * 0.2); // 4. Mélange final vec3 final_color = mix(tint_pm.rgb, tint2_pm.rgb, final_noise); // mix tint and tint2 final_color = mix(final_color, glow_color.rgb, rim ); // apply rim light effect // On multiplie par l'alpha du tint pour le contrôle global out_fragColor = vec4(final_color, alpha * tint_pm.a); } ``` Now, this is a physics simulations, which mean **FORCES!** I have implemented gravity forces, which you see in red because it is a debug build, but I will implement Coulomb (static electric charges) and Lorentz (moving electric charges in a magnetic fields) and any other things for fun gameplay (like vortex stuff!) I’ve build a physics\_manager and a physics\_registry lua module. - physics\_registry role is to register physical objects of two kinds: - physics\_manager role is to handle all global physics, so it defines a physics\_world\_listener which Here each planet has configurable mass for gravity, mass for collisionobject, radius of planet, radius of trigger zone… so you can have a small planet with big gravity mass but a small bullet2d mass! this is the physics\_manager world\_listener: ```lua --- Listener for physics events --- It reposts message to objects that have registry.register_listener(id) --- It handle auto-registration of force zones triggers to mobile objects (if zone is in registry.register_zone(id) and mobile is in registre.register_mobile(id) function M.physics_world_listener(self, events) for _, event in ipairs(events) do if event.type == M.RAY_CAST_RESPONSE then -- Handle raycast hit data -- pprint(event) elseif event.type == M.RAY_CAST_MISSED then -- Handle raycast miss data -- pprint(event) else local listener = registry.get_listener(event.a.id) local other_listener = registry.get_listener(event.b.id) if event.type == M.CONTACT_POINT_EVENT then -- Handle detailed contact point data -- pprint(event) if listener then M.repost_contact_point_response(event, false) end if other_listener then M.repost_contact_point_response(event, true) end elseif event.type == M.COLLISION_EVENT then -- Handle general collision data -- pprint(event) if listener then M.repost_collision_response(event, false) end if other_listener then M.repost_collision_response(event, true) end elseif event.type == M.TRIGGER_EVENT then -- Handle trigger interaction data -- pprint(event) -- mobile and zone auto-registration -- mobile zone détection M.handle_zone_triggers_registration(event.a.id, event.b.id, event.enter) if listener then M.repost_trigger_response(event, false) end if other_listener then M.repost_trigger_response(event, true) end end end end end ``` And the fixed\_update() loop: ```lua function M.fixed_update(self, dt) for mobile_id, mobile in pairs(registry.mobiles) do if mobile then local force_points = mobile.fn_get_points() local total_forces = {} for i = 1, #force_points do total_forces[i] = vmath.vector3() end local has_force = false -- On itère sur toutes les zones qui influencent cet objet précis for zone_id, zone in pairs(mobile.active_zones) do if zone then local forces = zone.fn_compute_force(force_points) for i = 1, #force_points do total_forces[i] = total_forces[i] + forces[i] if vmath.length_sqr(total_forces[i]) > 0 then has_force = true end end end end -- Une seule application de force par objets mobiles, avec tous les points internes if has_force then mobile.fn_apply_forces(force_points, total_forces) end end end end ``` When I will be more advanced in this code, I will shared this physics\_manager module as it could be easily used for other games I think. Or just as an example. Next steps: - dissociate mesh points from collision objects of Mr. Blob: I want more vertices on the mesh to smooth it, they will be influences by the collision objects, but not exactly the same. I want to add animation to them too. - add Blob eating stuff game mechanic: you eat, Blob grows.. and grows… and duplicate? add cores? create a nest? change blob physical properties? electric-blob? magnetic-blob? glueing blob? frozen, rock blob? Eat bad blob and gain their powers! - many other types of force-zones and other mobile objects (bad blobs, floating stuffs, asteroids stars etc.) - add a “landing” mechanics on planets so that it becomes more of a plateformer while on ground (ok this gonna be Blob Galaxy soon 😅) - add a minimap to not get lost in the universe! - what else? Well this was a longer post I thought I will do! Maybe it counts as a dev diary ^^ I hope you’ll like Mr. Blob and you could give some feedback about this little game. As a final note, I want to say that I found Defold to be a truly great engine! I did all this with I found a lot less code I would expect. You have to think about organisation of things a bit first, and think “à la Defold”, but then the engine let you do everything you want in a graceful way. Thanks to all the team working on this thing. ---
**Author:** ![Pawel](https://forum-defold.b-cdn.net/user_avatar/forum.defold.com/pawel/32/24623_2.png) [@Pawel](https://forum.defold.com/u/Pawel)\ **Post date:** [April 2, 2026, 6:06am UTC](https://forum.defold.com/t/community-challenge-5-break-it/82303/38 "2026-04-02T06:06:10Z")
Blob Planet is awesome! So nice you finished it! 😉 [Previous page](https://forum.defold.com/t/community-challenge-5-break-it/82303.md?page=1)