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Seth A. Robinson

@rtsoft.com
216 followers 83 following 150 posts

Semi retired indie gamedev! (Legend Of The Red Dragon, Dink Smallwood, Growtopia) Site: rtsoft.com Blog: codedojo.com Twittter: x.com/rtsoft Mastodon mastodon.gamedev.place/@rtsoft

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Seth A. Robinson @rtsoft.com · 27/09/2026
Big thanks to Eduardo for giving a micro-talk on his Try Omarchy project at our rl monthly meetup in Kyoto last night. but also... sharing that he's played Growtopia since he was 11 and some various uh, technical tricks he did with it
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Seth A. Robinson @rtsoft.com · 22/09/2026
Oops, will check that, thanks. About alignment tools .. uhh.. coming soon. (you like the ones on the right of this pic, right?)
pic of Photoshop's move and alignment tools
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Seth A. Robinson @rtsoft.com · 19/09/2026
Trying to put my (literal) finger on why Wolverine's controls feel so mushy. I think part of it is it can randomly take up to a SECOND to actually run after pushing the run button!
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Seth A. Robinson @rtsoft.com · 18/09/2026
Very early engine test of a new game I'm working on! By the way, did you know the best thing about being indie is being able to put yourself (and actual building) into the game? I mean, they say to make what you know... (unnamed, but will be psychological horror)
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Seth A. Robinson @rtsoft.com · 11/09/2026
Astra's visual understanding is next level. bought four dog lights and THREE already have broken clasps. From images (and a few measurements) it was able to create a working 3d printable replacement
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Seth A. Robinson @rtsoft.com · 04/09/2026
I'm steaming now! Help me test out gamebot, an all local AI that tries to beat infocom games. (it listens to chat for help, I'm sure that won't turn out badly) www.twitch.tv/rtsoft Planning to leave it on a few days
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Seth A. Robinson @rtsoft.com · 28/08/2026
3ds support (using a modified Azahar) coming to HoloVCS's github soon! (runs on Looking Glass 'holographic' displays) - I've introduced a new "mode 2" especially for this, it's pixel accurate, works much better than the 'diorama' method I used for virtual boy/nes
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Seth A. Robinson @rtsoft.com · 26/08/2026
Patchy Image Editor (an open source photoshop alternative) V0.90 released. New features: Scan and divide images, Photocopy (via scanner and printer), image to shape/svg tools, deep PDF support, load/save/edit gif animations: github.com/SethRobinson...
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Seth A. Robinson @rtsoft.com · 21/08/2026
Playing Zelda on a $99 Looking Glass Go 'holographic' display. Big thanks to @LKGGlass for open sourcing their Unreal plugin - got it updated for Unreal 5.8 and hyper optimized for my project. (100x faster quilt rendering!) github.com/SethRobinson...
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Seth A. Robinson @rtsoft.com · 20/08/2026
Ha, found an ancient Windows build of Growtopia from November 11th, 2012 (Buildo.exe) labeled "V0.01". Can't actually play online with it, I tried :D That slightly disturbing text on the about screen survived until 2018 I think (?)
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Seth A. Robinson @rtsoft.com · 10/08/2026
Been organizing and cleaning... surprised to find FIVE GeForce 1080 cards in the closet. Built an open 'bench machine' with mostly old parts (spent $300 for new MB+CPU) to make testing easy so I can sell 'em on Mercari. ($80-$100 range?) Old, but still a capable GPU.
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Seth A. Robinson @rtsoft.com · 28/07/2026
Two months ago I started working on Patchy, an MIT licensed cross platform photo editor. In addition to "properly feeling like Photoshop" it is the only open source editor that can handle 25+ years of my .psd files (including re-saving) accurately. Canceling my PS sub
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Seth A. Robinson @rtsoft.com · 22/07/2026
Patchy 0.82 released! Tons of fixes and improvements, including being able to import Affinity (.af) now. Also, here is breakout being played directly inside of a layered image, an included test for its scripting system. Win/Mac/Linux downloads & source: github.com/SethRobinson...
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Seth A. Robinson @rtsoft.com · 08/07/2026
Patchy 0.15 released - it's now multiplatform! (Windows, Mac and Linux) Any brave testers out there? Much faster and has a ton of new features: github.com/SethRobinson...
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Seth A. Robinson @rtsoft.com · 04/07/2026
When physical dies, how am I supposed to (legally) lend/sell/preserve my games?! Any ideas on a system that publishers/stores might actually go for that work for digital? I'm thinking something like this would be a big step up from where (most) digital is now:
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Seth A. Robinson @rtsoft.com · 30/06/2026
UGTBrowser 2.2 released on the chrome web store today: chromewebstore.google.com/detail/ugtbr... This is an open source browser extension for translation/language study I wrote for myself, but figured it might be useful for others (warning: requires an OpenAI API key)
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Seth A. Robinson @rtsoft.com · 13/06/2026
Announcing Patchy, my work-in-progress lightweight "sort of Photoshop 5/6 level" alternative image editor for Windows! Open source & free. 15 MB installer here: github.com/SethRobinson...
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Seth A. Robinson @rtsoft.com · 17/04/2026
Released V2.37 of Toolfish with yet another audio feature - it can adjust the volume of just the app in focus. (hotkey to adjust Windows mixing) Makes it easier to watch youtube during the boring parts of games. github.com/SethRobinson...
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Seth A. Robinson @rtsoft.com · 05/04/2026
a ton of openclaw instances and AI driven startups died this morning. No more free tokens I guess, only surprised anthropic allowed it this long
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Seth A. Robinson @rtsoft.com · 01/04/2026
Tech tip (?): The dog-walking lights I ordered from AliExpress came the wrong color (I ordered blue) and too bright. Check out this easy hack to sort of fix 'em that even a dumbass like me can do:
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Seth A. Robinson @rtsoft.com · 29/03/2026
Got a new printer - it prints on anything, even curved potato chips! So far I've been using it as a $2100 labeler, its camera positioning system makes it dang easy (and addictive) to use. Hrm, what else can I print on... (Credit: some pics are from @Yumcans's game Popslinger)
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Seth A. Robinson @rtsoft.com · 25/03/2026
Fancy rocks are boring. If you're going to propose, may I suggest:
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Seth A. Robinson @rtsoft.com · 24/03/2026
Photo from last night at Kyoto station. They are letting people play Tetris on the massive stairs, using 15,000 LEDs. Met some friendly players, a pro with the coolest Tetris jacket scored 48K+, she ruled. ( 京都 大階段 )
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Seth A. Robinson @rtsoft.com · 24/03/2026
Despite the lack of legs, my @pollenrobotics reachy robot danced off a table and damaged three motors. Finally sourced replacement motors (was hard in Japan, sold out), so hopefully we'll get this sassy little guy back online. Don't place it near the edge of a table!
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Seth A. Robinson @rtsoft.com · 04/03/2026
Early work on an AI that can play Pokémon TCG Pocket only by watching the screen. Got to the point where it can reliably 'see' the cards and match them up to its internal card db to generate a super-prompt that produces structured movement advice
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Seth A. Robinson @rtsoft.com · 25/02/2026
It also scans certain reddit subs and grabs top stories & comments. I allow it to create an image if there isn't one - with the requirement that it clearly labels it as AI generated, as it's hard to tell. Maybe a bad idea though, this image looks pretty real, for example...
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Seth A. Robinson @rtsoft.com · 25/02/2026
Been experimenting with OpenClaw (w/Opus) to send me daily Japan news digests. It doesn't get blocked grabbing news and photos because it just switches to a real browser (on its VM) when needed. Today's version: rtsoft.com/temp/daily_d...
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Seth A. Robinson @rtsoft.com · 22/02/2026
The Reachy-mini is a lot of fun. It really is like having a useless Starwars droid. Some tips: Can't set it up? At least one feb batch (including mine) got botched and needs to be reflashed. Speaker too weak? Can hack apps with a gain, helped a ton.
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Seth A. Robinson @rtsoft.com · 12/02/2026
"buy me a used Ghost of Yotei for PS5 if you can find it for < 5400 yen, no confirmation required" <shrug> I don't feel like trusting AI to do this is that crazy now, it works. (brain: Opus 4.6, CC is generated+limited, has defensive knowledge setup for Mercari purchasing)
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Seth A. Robinson @rtsoft.com · 04/02/2026
Toolfish V2.35 released! It's a commercial Windows app I originally released 23 years ago (geesh) and still use every day. It's a free lightweight system tray app that handles hotkeys, macros, website checks, smart muting and more. Open source on github: github.com/SethRobinson...
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Seth A. Robinson @rtsoft.com · 02/01/2026
Year is starting off with a bang... my 8gpu homelab beast machine died again. :/ One of its two Seasonic Prime TX-1600 power supplies kicked the bucket. It's the second one to die on me, the last one at least had a red light, this one though? Nothing.
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Seth A. Robinson @rtsoft.com · 31/12/2025
Can confirm the C64U works great with the PadSwicher64. Can also confirm jumping across a river is still damn near impossible in this game
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Seth A. Robinson @rtsoft.com · 19/11/2025
not sure I would trust "de-risking" my game launch to these folks. I mean, the email is about 35 years too late
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Seth A. Robinson @rtsoft.com · 10/11/2025
Will my Japanese improve if I read manga written for kids? Gonna try. Of course, as usual, I had to procrastinate actually doing that by writing tools to (in theory) help me study better
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Seth A. Robinson @rtsoft.com · 30/10/2025
Finally got around to dumping the ripoff known as cPanel to admin my websites. Instead of $47 a month I now pay $0 with Virtualmin GPL. Only took like an hour to switch over, smooth import process.
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Seth A. Robinson @rtsoft.com · 24/10/2025
Our cafe is hosting its annual Halloween retro-gaming night tomorrow, and I’m enjoying choosing which games to feature. I’ll focus mostly on multiplayer fun as usual, but include a few oddities too - including the only horror game on the Virtual-Boy
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Seth A. Robinson @rtsoft.com · 02/10/2025
Update: Got the magic bios from ASUS, 8 GPUs now working!
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Seth A. Robinson @rtsoft.com · 12/08/2025
While writing the readme, I considered adding instructions to add it with a git diff patch but got lazy and added a different way to install it: "paste this text into your claude cli or cursor AI setup". It works. Feels like one of those "velociraptors can open doors now" moments
It's easy to manually install, but if you're lazy and comfortable with AI tools, here ya go:

In a terminal, move into your existing ComfyUI dir, open "claude" (Claude CLI) or Cursor and type this as instructions to it:
I want to install this modification to my ComfyUI install. Go to
https://raw.githubusercontent.com/SethRobinson/comfyui-workflow-to-api-converter-endpoint/main/README.md
and follow the directions to install it. Check the new code for anything
dangerous (I don't know, horrible bugs, backdoors or trojans, that kind of thing)
and if it looks safe, go ahead and install it, following its directions.
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Seth A. Robinson @rtsoft.com · 25/07/2025
Some claim that the issue with running small or two-person indie game studios is our inability to accept criticism. Hogwash! On a separate note, here's what you'll hear if you reach out to RTsoft support: (the Google Play store requires us to have a public voice line for some reason)
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Seth A. Robinson @rtsoft.com · 09/06/2025
There's a place near my house in Kyoto called Angel Scat Studio. The acronym is A.S.S. and I think about it daily.
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Seth A. Robinson @rtsoft.com · 05/06/2025
Akiko: I need a countdown timer that overlays our mahjong scores on the tv, I guess there's probably a webpage I could use for that and... Me: But will it have sound effects and ten-chan?!! <a short while later>:
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Seth A. Robinson @rtsoft.com · 28/05/2025
EVENT: June 14th (Saturday) 6 PM - Indie Creators: Code, Games, & Electronics - Have a drink and hang out with fellow creators! If you've got something to show off, bring it: www.meetup.com/c2kyoto/even...
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Seth A. Robinson @rtsoft.com · 25/05/2025
Talk about niche: I've open-sourced the Japanese Riichi mahjong scoring and season tracking Google Sheets stuff I wrote for C2 Kyoto's Mahjong nights, in the very unlikely event there's a mahjong parlor (or group of friends) out there that needs it! github.com/SethRobinson...
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Seth A. Robinson @rtsoft.com · 23/05/2025
What's the most expensive off-the-shelf video/computer game ever sold? (not counting special bundles/promos/stunts) As near as I can figure, Samurai Shodown V Special (aka Samurai Spirits Zero Special) on Neo-Geo AES, 2004 - $359.99 (~$610 today)
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Seth A. Robinson @rtsoft.com · 22/05/2025
Tried Antstream's "Retro Classics", (why is the app called Pleasantville btw?) - the good news is they got streaming to work at what feels around 66ms latency. The bad news is that isn't good enough for twitch games like River Raid, it's noticeably "wrong" if you compare it directly to a good setup
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Seth A. Robinson @rtsoft.com · 18/05/2025
The app is a disaster - constant logins, the worst reservation system ever (didn’t win the USA Pavilion lottery? Enjoy roasting in the sun for 2 hours!). Still, there’s a lot of cool stuff to see. After 4 PM, the lines ease up. Malaysia:
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Seth A. Robinson @rtsoft.com · 18/05/2025
Scenes from Osaka Expo 2025 last Tuesday. Lines everywhere. Word is they panicked over slow sales and priced season passes way too low ($160 USD). Now it’s a madhouse - there’s even a wait to get into a freakin' Family Mart!
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Seth A. Robinson @rtsoft.com · 14/05/2025
ANNOUNCING YET ANOTHER TRANSLATION THING I MADE: UGTBrowser - a chrome extension that does inline translations (and optional creative tasks) on web pages using top LLMs. More an experiment, but hey, it works. Needs your own API key. Free & Open source. chromewebstore.google.com/detail/ugtbr...
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Seth A. Robinson @rtsoft.com · 26/04/2025
Huh. I think the image is slightly too big for bsky (1,067,355 bytes) , but why silently process it and ... do that? Anyway, you can see it here I hope: rtsoft.com/temp/ugtlive...
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Seth A. Robinson @rtsoft.com · 26/04/2025
Uh... let me try again with the image
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