Contest: Mech Animal

This contest has ended. Thank you for all your great entries. Please check out the winners and highlighted entries below!

Welcome to the 17th official Principia Building Contest!

The topic of the week is to create a Principia version of an animal. The animal can be anything - a mosquito, a frog, a cat or even a dinosaur. The animal must be able to move, but does not have to be controllable. How big the animal is does not matter, what matters is how advanced or well-made it is.

The goal is not to make something that resembles a real life animal as closely as possible, but to make a mechanical interpretation of an animal, possibly with extra features or funny quirks.

You have until next Thursday (June 12th)! Good luck! The winner recevies a Golden Trophy and the runner up gets a Silver Trophy!


The level must be custom or adventure.

No old levels or derivatives.

Tips & Help

Please see the wiki for help.

Wiki: Tutorials Index

Wiki: Creating a Simple Walker

How to Submit an Entry

After you have uploaded your level, browse to its level page, choose the correct contest and click "Enter level into contest".



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  • Aceheliflyer: Wow, I thought techZ would win but I guess im wrong.
    Congrats to Doughnuts 108
  • TechZ2124: Thanks for the silver trophy ! @Doughnuts108: congrats man ! When I saw your horse I understood that it would get a trophy ;)
  • that guy2: @Doughnuts108: yay!
    @TechZ: pffffffbfbbbfbbbfbbbbfbbbfbbfbbpffbt!
  • sdac: Great creations everyone, very hard to judge since it was a mix between art and mechanics, but those horse legs are unmatched ;)
  • sjoerd19992: I think this is the first contest with so many great entry's! All the other contest were only 2-4 great builds, but now there much more who have a change to win!! ;)
  • woodnut2: Been very busy lately, but I did build a little nothing :)
  • mrsimb: Oops I mean I more like to programm :D
  • mrsimb: @Nighthawk: I more like to pro rank on my phone, instead of building (because of stupid touchscreen)
  • sdac: @that guy: that's a great use of the stabilizer, just what it's intended for. Regarding multiimport, that won't be an issue.
  • that guy2: @sdac: regarding the stabilizer, I use it to prevent tiltmeters from violently shaking back and forth. (Build one, see what happens!) And only preventing people from adding it might not work, because of multi select.
  • Nighthawk: @mrsimb: idk i thought you might build a frog or something:)
  • Aceheliflyer: @ricardito08: yeah. Coz there is a pic of it.
  • mrsimb: @Nighthawk: no it is not interesting for me
  • ricardito08: @sdac: What the... Why the heck people abusing the stablizer makes you puke?? I dont know exactly how to use stablizer. So I just put all bars to max. Lol. Hmm... I think increasing the second number on world properties on the bottem acts like a stablizer (Lol forgot the name of that)
  • ricardito08: @Aceheliflyer: Bet rom1k Mech animal inspired sdac
  • Nighthawk: @mrsimb: this is your chance!
  • sjoerd19992: I'm gonna make an elephant, destroying the city!! ;)
  • sdac: @Arrow: I made it high so it could be used to approximate water, air drag, top down friction, etc. Removing it will not be an issue for old levels, it just won't be possible to add it to new levels.
  • JOELwindows7: No old level <-- Level must made after declaration of this contest!
    No Derivatives <--- Level must made by yourself, not by modding someone level to better!
  • Arrow: @sdac If that is the case, maybe you could simply lower the max power of the stabilizer. That way, you don't have to worry about the removal causing any crashes.
  • sdac: Only thing I think is acceptable is angular damping of 0.1 unless you have something extremely complex and use damping to emulate friction.
  • sdac: @Arrow: I agree, the stabilizer is intended to stabilize the physics engine when something is extremely complex. I hate how it is abused. and I might remove it in the future because Principia 1.5 has a very small default damping that is unnoticeable and just enough for the most complex cases.

    I have said it countless times before but will say it again, a stabilizer is NOT a replacement for a good balancing system! I puke on levels abusing the stabilizer.
  • Arrow: @sdac Sometime you should just ban the stabilizer entirely. I would recommend doing it whenever possible, because I HATE that component! It has ruined so many great machines so far, because it is overrated, overused, and makes your machine look unrealistic, unpolished, and physically impossible.
  • Golden: @Qwert852: not really, but mech animal that can walk, transform, and animal art will win contest that is best
  • Qwert852: Im create animal mech
  • Aceheliflyer: @incrazyboyy: or him. Lol
  • PeterZ: I have an amazing idea, but I'll see if it won't be too hard for me. Because i have alredy started working on it, but it seems like it will be complicated
  • incrazyboyy: @Aceheliflyer: another admin, rom1k
  • Ridget: Accidentially put ma level here too :D but i have a transformer animal project tho, i think i'll in for this >_<
  • endrius: Did you play my level?
  • endrius: @electro: thanks
  • electro: @endrius: click on your level, click on remove from contest
  • endrius: But my level is good :)
  • endrius: Sorry I posted a worong level how to remove?
  • Aceheliflyer: @sdac: im guessing you got inspired by some ones chicken walkier. (I cant remember who made it.)
  • Axohmega: Well I guess@ woodnut needs to go through his old weird bug / animal stuffs and make a new one
  • sdac: @PeterZ: the rules are more like guidelines
  • PeterZ: @sdac: so i guess that mythological animals won't count
  • sdac: Good luck everyone!