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Principia

@principia-web.se

Bluesky account for Principia, an open source physics-based sandbox game with electronics, robotics, Lua scripting and more. Website: https://principia-web.se Source code: https://github.com/bithack/principia/ Account run by: @voxelmanip.se

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04.01.2025
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Latest posts by Principia @principia-web.se

Preview
Daft Dummy! Hello and welcome to the fourth Principia building contest. This time we are doing a re-run of the old [Stupid Dummy!](/archive/contest/3) contest from back in the day, but with an alliteration as the...

The latest Principia building contest, Daft Dummy, started Monday this week. You still have plenty of time left (until the 16th) if you want to participate!

principia-web.se/contest/4

#gamedev #contest

05.03.2026 16:18 ๐Ÿ‘ 5 ๐Ÿ” 1 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

Seeing more homebrew games being sold for old consoles like aftermarket products would be really neat

23.02.2026 15:17 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Screenshot of the random number generator level by randomguy123. It features a bunch of graphs and debuggers and the randomly generated number is visible on digital number displays to the right.

Screenshot of the random number generator level by randomguy123. It features a bunch of graphs and debuggers and the randomly generated number is visible on digital number displays to the right.

Halftime for the current Principia building contest, Crazy Circuitry. One week has gone by, one week left!

randomguy123 has submitted a solid contender today, a six digit random number generator. But what else will others submit this week?

principia-web.se/contest/3

#gamedev #contest #competition

23.02.2026 14:36 ๐Ÿ‘ 2 ๐Ÿ” 1 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

P.S. You can join the community right away to try it out without an account, just like the good old days of Discord before they shoved phone number verification onto everyone. You can then claim your account if you wish to stay.

19.02.2026 16:19 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Fluxer Fluxer is a free and open source instant messaging and VoIP platform built for friends, groups, and communities.

As a result of the recent things happening to #Discord, I have been looking at @fluxer.app as an alternative to Discord. I have made a #Fluxer community for Principia, which will be bridged to Discord soon and serve as a potential exit path when Discord goes bad.

principia-web.se/fluxer

#gamedev

19.02.2026 16:19 ๐Ÿ‘ 3 ๐Ÿ” 1 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

You're still doing really great! Everything implemented works surprisingly well despite some server hiccups, and I am excited to be starting a Principia Fluxer community to gradually move us off of Discord. Keep doing great work.

19.02.2026 15:35 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Preview
Crazy Circuitry Hello and welcome to the third Principia building contest. These are... becoming sorta-yearly now, apparently. The theme for this contest is... Circuits! You have probably seen a level on the commun...

The latest Principia building contest is now live, and the name of it is Crazy Circuitry!

You have until the 2nd March 12:00 GMT to submit a level. Good luck!

principia-web.se/contest/3

#gamedev #gaming #foss #opensource #contest

16.02.2026 12:28 ๐Ÿ‘ 4 ๐Ÿ” 2 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Donations

Please donate to support my work on Principia and keep the community site running.

principia-web.se/donate

#gamedev #foss #opensource #donate #donations

12.02.2026 22:58 ๐Ÿ‘ 5 ๐Ÿ” 3 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
Mosaic blurred screenshot of a level.

Mosaic blurred screenshot of a level.

The new upcoming Principia building contest will be available at exactly 12:00 (noon) GMT tomorrow. See you there!

principia-web.se/contest/3

#gamedev #gaming #foss #opensource #contest

15.02.2026 18:15 ๐Ÿ‘ 9 ๐Ÿ” 2 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

Renewal for the site domain is near, I was intending to move to another registrar but they've already sent an invoice for automatic renewal. My current registrar is currently price gouging all their services to fund their AI site creator tool (ugh), hence why had wanted to transfer somewhere else.

12.02.2026 22:58 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Donations

Please donate to support my work on Principia and keep the community site running.

principia-web.se/donate

#gamedev #foss #opensource #donate #donations

12.02.2026 22:58 ๐Ÿ‘ 5 ๐Ÿ” 3 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
Post image Post image Post image Post image

Hello Bluesky!

Principia is an #opensource physics-based sandbox building #game featuring #electronics, #circuitry, #robotics, miniature robots, #puzzles, #Lua scripting and more.

Starting its life as a commercial game by Bithack, it has now been released as #FOSS to be developed by the community.

11.04.2025 22:43 ๐Ÿ‘ 3 ๐Ÿ” 3 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

This also means you can now sort by oldest level, for historical interests, or to filter the top liked and top downloaded levels by level type. More options are likely to come.

05.02.2026 21:39 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Screenshot of the new level browse page, containing radio buttons to select whether you should see current levels or levels in the archive, as well as a dropdown to sort by (latest, oldest, most liked and most downloaded) and filter by level type (all, custom, adventure and puzzle).

Screenshot of the new level browse page, containing radio buttons to select whether you should see current levels or levels in the archive, as well as a dropdown to sort by (latest, oldest, most liked and most downloaded) and filter by level type (all, custom, adventure and puzzle).

Earlier this week I pushed an update to the Principia site that merges the latest, most liked and most downloaded levels pages (both non-archive and archive) into one new page. That's six pages, combined into one now, with all sorting and filtering options right at your fingertips!

#gamedev

05.02.2026 21:39 ๐Ÿ‘ 4 ๐Ÿ” 1 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
Preview
Principia YouTube channel for the game Principia, an open source physics-based sandbox game with electronics, robotics, Lua scripting and more. Account run by ROllerozxa, if you have Principia videos from the ...

The new Principia #YouTube channel has reached 50 subscribers!

youtube.com/@principiagame

It's still just a fraction of the amount of subscribers that the old Bithack channel has (~2.28k), which I unfortunately don't have access to. But it's still nice. New content soon, maybe.

#gamedev

05.02.2026 21:37 ๐Ÿ‘ 5 ๐Ÿ” 1 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Post image

Back in 2021 I made an iceberg image for Principia, full of references. I originally sent it in the Discord server and it was mostly forgotten about, but rediscovered it recently.

I've now posted it on the forums w/ a full legend over the iceberg:

principia-web.se/forum/thread...

#gamedev

05.02.2026 21:35 ๐Ÿ‘ 5 ๐Ÿ” 1 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Preview
Wacky waving inflatable arm flaling tube people... IN SPACE v2.1 Wacky waving inflatable arm flailing tube man... IN SPACE! v2.1 (The Principia Dancers) Use A & D buttons to 'Disco things up' Update: Added various dance grooves. Use W & S buttons to cycle thro...

And here is a link to the level itself if you wanna play it (you can control them!):

principia-web.se/archive/leve...

05.02.2026 21:33 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Screenshot of the video, showing four characters built with wooden planks and cylinders flailing around with their arms and waving around on top of a space background and lasers.

Screenshot of the video, showing four characters built with wooden planks and cylinders flailing around with their arms and waving around on top of a space background and lasers.

Wacky Waving Inflatable Armflailing Tube People!

www.youtube.com/watch?v=chC6...

tube.fediverse.games/w/fdaYtX5TsH...

#random #funny #gamedev

05.02.2026 21:32 ๐Ÿ‘ 5 ๐Ÿ” 1 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
Preview
Apparatus Apparatus is a sandbox puzzle game for Android devices. Use your hammer to pin planks and wheels together to build anything you can imagine, connect your apparatus to motors and give them power using ...

Last year I made a fan website for Apparatus:

apparatus.voxelmanip.se

In addition to downloads, it also contains various other goodies such as links to the game's full soundtrack, archived news articles & other history, and info about unused content like the Interactive Challenge mode.

13.01.2026 16:41 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

Later in 2013 the sequel to Apparatus, Principia, was released for Android. While it did not see as much success as its predecessor, it has gained a new life as an open source project and carries on the legacy of the original game.

13.01.2026 16:39 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
Screenshot of the Mars Rover level from Apparatus.

Screenshot of the Mars Rover level from Apparatus.

Screenshot of an early puzzle level in Apparatus, where you construct a seesaw to get the marble in the basket.

Screenshot of an early puzzle level in Apparatus, where you construct a seesaw to get the marble in the basket.

This year marks 15 years since the initial #Android release of #Apparatus, 1.0 being released August 2011.

It was revolutionary for its time and reached immense popularity back in the day, topping the charts on Android Market at its peak and being handpicked as "Editor's Choice" by Google.

13.01.2026 16:37 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
Principia in the web browser, and more... Recently you might have noticed a new link on the pages for levels on the community site, which takes you to a web-based version of Principia allowing you to play the level directly in your web browse...

I published a new news article on New Year's Eve about the recently introduced web version of Principia available on the community site, as well as other new features on the website that have been added recently:

principia-web.se/news/22

#gamedev #foss #opensource #happynewyear

01.01.2026 22:03 ๐Ÿ‘ 4 ๐Ÿ” 1 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Post image

Or if Star Wars is not your thing, you can now LET'S GO GAMBLING! in Principia from the comfort of your web browser:

principia-web.se/archive/leve...

*loud incorrect buzzer* AW DANGIT

#gamedev

28.12.2025 22:36 ๐Ÿ‘ 5 ๐Ÿ” 1 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Post image

Today, another batch of fixes to the Principia web port were made.

One of the things I fixed was rendering LuaScript sprites, making levels such as this rendition of the beginning of Star Wars ch. IV now fully playable in your browser without glitches:

principia-web.se/archive/leve...

#gamedev

28.12.2025 22:33 ๐Ÿ‘ 5 ๐Ÿ” 1 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
Post image Post image

And here you have some funny graphical glitches from when I was working on the web version. I'm sure it will improve over time.

#gamedev

28.12.2025 22:23 ๐Ÿ‘ 4 ๐Ÿ” 1 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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Yesterday the #web version of Principia has finally gotten into a state where it is relatively playable now!

There is now a link on each level page that takes you to the experimental web version to run the level straight in your web browser, without needing to install the game.

#gamedev

28.12.2025 22:21 ๐Ÿ‘ 5 ๐Ÿ” 1 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

I have submitted a proposal for a Principia stand at #FOSDEM 2026. Will be interesting to see if it is accepted when the stands will be announced on the 16th of November later this year.

If we get accepted, see us at FOSDEM!

#foss #opensource #gaming

20.10.2025 22:58 ๐Ÿ‘ 2 ๐Ÿ” 1 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Donations

Earlier this year I had to move the Principia infrastructure to a new server. Now after some months with the dust settling, the new server running for a while and the old server been decommissioned, it's a good reminder that you can donate:

principia-web.se/donate

#foss #gaming #gamedev #donations

11.09.2025 10:04 ๐Ÿ‘ 7 ๐Ÿ” 2 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Preview
Install Principia on Linux | Flathub Physics-based sandbox building game

Principia is now available as a #Flatpak on #Flathub! So cool, so exciting.

Many thanks once again to Luna for picking up the work to get Principia onto Flathub and taking on the role of maintaining the Flatpak package.

flathub.org/en/apps/se.p...

#gamedev #linux #foss

24.09.2025 20:05 ๐Ÿ‘ 7 ๐Ÿ” 1 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Donations

Earlier this year I had to move the Principia infrastructure to a new server. Now after some months with the dust settling, the new server running for a while and the old server been decommissioned, it's a good reminder that you can donate:

principia-web.se/donate

#foss #gaming #gamedev #donations

11.09.2025 10:04 ๐Ÿ‘ 7 ๐Ÿ” 2 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0