Kepler (Developing Thwimbly!)
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keplerelectronics.com
Kepler (Developing Thwimbly!)
@keplerelectronics.com
Currently developing Thwimbly, a fluid 2D platformer built in #tic80
https://kepler-softworks.itch.io/thwimbly
Pinned
New Thwimbly Demo is up! Featuring completely overhauled levels, movement, and all sorts of new content :D

#solodev #TIC80
Hotfixed the demo to fix a handful of bugs that came through after the initial demo release, including:

SFX fixes
Collectibles should now save when completing a level
Thwimbly *should* no longer respawn in a wall in bonus levels
Invisible walls at top of level are now visible
moar coins
kepler-softworks.itch.io/thwimbly

Current demo is only on itch, hoping to get a demo on Steam sometime in the next few months, but there's a bunch of work that needs to happen beforehand.
Thwimbly! by Kepler Softworks
Cute Platforming Action!
kepler-softworks.itch.io
December 30, 2025 at 4:49 AM
New Thwimbly Demo is up! Featuring completely overhauled levels, movement, and all sorts of new content :D

#solodev #TIC80
December 29, 2025 at 5:14 PM
This just in!

Monchers have been spotted relaxing in inner tubes!

Thwimbly can bop them from below to move them around a bit but watch out! Jumping into them from above can spell a nasty surprise!

Made in #TIC80 with #RES64 palette
December 21, 2025 at 12:29 AM
Picofoil is (somewhat) out!

The deadline for the paper I'm writing on it is tomorrow, so the toy needed to be released, even if it still has some major accuracy issues.

ok back to writing the paper :)

#picotron
Picofoil
www.lexaloffle.com
December 14, 2025 at 9:07 PM
It appears that the airfoil is preparing to make the jump to lightspeed.

This is not physically accurate, but it is mesmerizing. Still a lot of work to do.

#picotron
December 9, 2025 at 12:04 AM
I'm not going to say its working as intended, but flow field visualization is getting somewhere. it's at least not crashing anymore, which is more than I could say for a couple hours.
November 30, 2025 at 7:03 AM
Realizing that Picotron's trigonometry functions are optimized for gamedev in ways that break more "academic" math operations. Having to try and write my own converters to convert the equations from Anderson's Fundamentals of Aerodynamics to work in Picotron.

At least I have clickable buttons tho
November 28, 2025 at 10:28 PM
Reposted by Kepler (Developing Thwimbly!)
i forget sometimes that indie can mean someone who goes to an office and gets paid a salary and has company health insurance. in my mind it will always be one guy, working alone, with a leather jacket and a broad brimmed hat, swinging across spike pits with his whip, hating snakes,
November 21, 2025 at 2:54 PM
Managed to convince my professor to let me do my final aerodynamics project in #Picotron, so now I have about two ish weeks to get thin airfoil theory working in here.

I currently have NACA airfoils displaying, next steps are lift coefficients and streamlines, then a better UI
November 26, 2025 at 10:26 PM
Current scope target for the next demo is:

The entirety of World 1 (4 levels)
1 Kaizo Challenge level (seen in video)
1 test level with a variety of lategame mechanics to get some feedback

Aiming for demo release late December, but that depends on wrist cooperation
Lately I've been working on optional challenge levels for people who like testing their skills.

There's at least one bug in the video so I've still got plenty of work to do before it's ready for primetime
November 22, 2025 at 4:03 PM
autumn trees in Thwimbly 1-1 are lookin pretty good if i do say so myself.
November 18, 2025 at 3:24 PM
I wonder if this is part of the reason why many modded SMW assets integrate so well into the game.

Makes me curious what a graphics swap would look like where everything was converted to one style.
Super Mario World has an extremely eclectic art style whereby many enemies are drawn in completely different ways. Development files reveal Mario went through many stylistic changes; it is possible that all the enemies were made to fit Mario, but at different points in time.
November 12, 2025 at 3:21 PM
Finally finished this song/music video I've been chipping away at since summer 2023 or so. idk what genre to even call it

youtu.be/OIgWk8Dk2I0
Harpuia - Airbreadth (Official Music Video)
YouTube video by Lenticularian
youtu.be
November 9, 2025 at 1:55 PM
Doin some videomaking again. First Devlog on Thwimbly is up, talking about what the game is and an overview of what my next steps are in development.

Link in thread.
November 4, 2025 at 11:39 PM
Reposted by Kepler (Developing Thwimbly!)
the key to game design is to imagine the target audience for your game and then imagine how you would make them the most upset
October 21, 2025 at 10:32 PM
making moves
September 21, 2025 at 9:41 PM
at least i was able to use the time for something productive
September 4, 2025 at 3:09 PM
Reposted by Kepler (Developing Thwimbly!)
Rebounder is announced! Wishlist it on steam, or play the shareware version right now: reboundergame.com/shareware
August 28, 2025 at 2:01 PM
what if i told you in the next update thwimbly can wear the 7 grand dad hat
July 22, 2025 at 7:51 PM
THE THWIMBLY DEMO HAS BEEN UPDATED TO 0.1.3!

Featuring better controls, more graphical juice, and better music/SFX integration.

Made in #TIC80 with the #RES64 palette

Free download, link in replies
July 18, 2025 at 9:16 PM
Spent a bunch of last week at #sgdq2025

the most fun i've had in years. brought my 3DS along to streetpass folks and took this selfie on the (admittedly lores) 3DS camera.

Definitely want to go again, definitely gonna pick speedrunning back up, it's been too long since i've had a speed game
July 14, 2025 at 6:44 PM
This clip cannot capture just how loud the chanting was in person. Probably my favorite single moment of the whole week, absolutely hilarious
What's that cow doing with that burger?!?! #SGDQ2025
July 14, 2025 at 6:30 PM
Spent this week watching GDQ and working on JUICE for Thwimbly. Trying to get a vertical slice of the first world done soon!

Built in #tic80, I'm trying to push this fantasy console as far as I can graphically. Having only 32 colors is tricky!!
January 11, 2025 at 5:00 AM
RX7s are some of my favorite cars ever, always a pleasure to see them show up on my timeline
alright lemme show y'all something different 😉

some WIP renders from a project i've been working on

Blender 4.3 - EEVEE
December 18, 2024 at 10:26 PM