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Complex Oscillator

@mfelps.bsky.social
1.7K followers 2K following 15K posts

I run games, I write games, and I make weird music. Friendly old multinerd who posts a lot of public domain art. soundcloud.com/chimerical-sound-eng… markfelps.itch.io rpg-trader.com/creator/97/mark-felps

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Complex Oscillator @mfelps.bsky.social · 4h
How are y'all making form-fillable PDF character sheets without Adobe out there? Any tips, links, suggestions?
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mike of noseatbelts games @noseatbelts.bsky.social · 10h
Part 2 is up! #osr noseatbelts.itch.io/the-battle-o...
noseatbelts.itch.io
Part 2 is up!
I have released the next installment of the Battle of Mt Sable, based on the true events of the Battle of Mt Blair...
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Complex Oscillator @mfelps.bsky.social · 22h
More videos should be adorable animations. www.youtube.com/watch?v=s1At...
youtube.com
miki - ça pik un peu quand même
YouTube video by Miki
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Complex Oscillator @mfelps.bsky.social · 22h
I did a post-game write-up for the first game of our short Wages of Sin campaign. complexoscillations.blogspot.com/2026/09/wage...
complexoscillations.blogspot.com
Wages of Sin: Beginnings
The four players begin in the hold of a cargo liner, three of them having spent thirteen weeks in cryo and one who's been stuck in a closet ...
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Complex Oscillator @mfelps.bsky.social · 23h
Made myself and a buddy some game notebooks.
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Complex Oscillator @mfelps.bsky.social · 30/09/2026
Fantastic Mothership game of Wages of Sin. The players work for Kerebos Security, a company I've used extensively in one-shots and my Gradient Descent campaign, so of course their ship was broken before they got it and they're stuck on Anvolla trying to figure out who robbed the local MegaYUM.
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Complex Oscillator @mfelps.bsky.social · 29/09/2026
My Sumatra "Recently Opened"
A grid of games covers, brightly colored with art, featuring wages of Sin Draw Steel Coriolis, and others.
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Complex Oscillator @mfelps.bsky.social · 29/09/2026
Green chile pork stew is in the crockpot, time to get ready to run Wages of Sin and have our players go after their first bounty. Afterwards, green chile pork stew and cornbread.
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Complex Oscillator @mfelps.bsky.social · 29/09/2026
Takes are inherently without nuance, that's why they're takes, and not well thought out essays.
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Complex Oscillator @mfelps.bsky.social · 29/09/2026
I know this is dumb, but I also keep watching it. www.youtube.com/@armoredmma
youtube.com
ARMORED MMA
ARMORED MMA is a brutal cage fighting sport that mixes steel weapons and armor into the world of mixed martial arts. Fighters can win by TKO, KO, or by outstriking their opponents. Subscribe to get ...
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matt @chasethematthews.bsky.social · 29/09/2026
@regularbird.bsky.social and I are hosting a Baseball Jam. We want you to pitch your tabletop baseball heaters. Make fun of baseball. Celebrate baseball. Who cares! It is old and weird, let’s make it new and cool. So join us for the next month and LETS PLAY BALL! itch.io/jam/baseball...
itch.io
Baseball Jam '26
A game jam from 2026-09-29 to 2026-11-01 hosted by regularbird & matthewchase. During the 2026 MLB Postseason, regularbird and matthewchase invite you to make something baseball for tabletop! From the...
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Chaoclypse (Brandon Yu) @chaoclypse.bsky.social · 29/09/2026
Hey everyone! It's my birthday. I released some free stuff! It's covered in this video: www.youtube.com/watch?v=gDK3... Links below!
youtube.com
Hobby Vlog - it's my birthday so here's some free rpg stuff
YouTube video by Chaoclypse
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Complex Oscillator @mfelps.bsky.social · 29/09/2026
When I got back into games after a long run of nothing but Champions followed by a five year break, this was one of the first things I stumbled across, and it sort of blew my mind. I will be glad to have a hard copy. Backed without hesitation.
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Complex Oscillator @mfelps.bsky.social · 28/09/2026
One thing I love about having lupus is all the opportunities to sit in a Quest Diagnostics office waiting in a cloud of effluvia for a disgruntled worker to make three attempts at taking some blood. Has Chuck Tingle written a book about the U.S. healthcare system fucking itself?
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Complex Oscillator @mfelps.bsky.social · 28/09/2026
Drop an album that was important to you when you were 19
Album cover from Faith No More's The Real Thing
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Complex Oscillator @mfelps.bsky.social · 28/09/2026
Good luck to all the folks submitting work to the Mothership writer's grant. I'm looking forward to all the the good stuff that comes from it. I can think of no other publisher that's as encouraging to writers in this space, which is part of why no one will ever run out of Mothership adventures.
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Paul @spookshow71.bsky.social · 28/09/2026
pillar temples #digitalart #rpg #fantasy #D&D
A group of adventurers gather beneath a temple at the base of a towering rock pillar.
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Complex Oscillator @mfelps.bsky.social · 28/09/2026
If the Dems take both houses, instead of closing the borders and putting kids in cages, they should instead create a new Amnesty Act. The GOP has been accusing them of trying to turn immigrants into voters for ages, so just fucking do it already.
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Complex Oscillator @mfelps.bsky.social · 28/09/2026
Near Dark
static.klipy.com
Paxton Says 'It's Finger Licking Good!'
Alt: Paxton Says 'It's Finger Licking Good!'
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Complex Oscillator @mfelps.bsky.social · 28/09/2026
I sometimes see people posting rants about OSR games and why they do things I could pretty easily answer, but it's usually also clear they've just decided to tee-off on something they don't entirely understand and aren't looking for understanding.
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Complex Oscillator @mfelps.bsky.social · 28/09/2026
Changing games after the TPK, I have decided to offer the players the following four choices: Otherscape by Son of Oak Games (haven't run/played) Stonetop (haven't run/played) Call of Cthulhu (have run and played) Delta Green (have played)
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Complex Oscillator @mfelps.bsky.social · 28/09/2026
After what would have been a TPK -- we cut it short because moods were not great -- we have set aside Coriolis: The Great Dark, which may be the single most lethal game I've run, and I've run B/X in Stonehell with Save or Die.
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matt @chasethematthews.bsky.social · 27/09/2026
A personal blog about writing my first game, why I made it, and what it meant for me. matthewchase.bearblog.dev/game-design-...
matthewchase.bearblog.dev
game design as therapy
A couple of days ago, I aired out some rough ideas I had for a future dystopian racing TTRPG. This blog will be a little more personal. It is about me cr...
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Complex Oscillator @mfelps.bsky.social · 27/09/2026
Choosin' Horsegirl. www.youtube.com/watch?
youtube.com
Horsegirl - "Switch Over" (Official Music Video)
YouTube video by Horsegirl
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ktrey @ktrey.bsky.social · 27/09/2026
d100 - Assorted Alchemical Gimcrack & Enchanted Ephemera Minor Magical Wonders and Expendable Items of Dubious Utility blog.d4caltrops.com/2026/09/d100... #osr #randomtables #ttrpgs
blog.d4caltrops.com
d100 - Assorted Alchemical Gimcrack & Enchanted Ephemera
H ere are a hundred Minor Magical Wonders that didn’t quite fit nicely into lists of their own. The intention was to provide some ideas f...
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Complex Oscillator @mfelps.bsky.social · 27/09/2026
Some people claim to have never heard Crazy Town's "Butterfly" but so many people over the years have said "Come, my lady, come come, my lady, be my butterfly, sugar, baby" it's difficult to believe you haven't unless you live in a tiny bubble under the sea.
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Complex Oscillator @mfelps.bsky.social · 27/09/2026
I realized when I posted the last books that I don't think I've ever noted that ALL of these have had wraparound covers. I also think, inexplicably, I haven't posted pictures of many of them. So, here are two different wrap around Violence covers.
Two wraparound zines covers for Luke Gearing's Violence. The first depicts the murder and rapine of a city by Romans, the second the same by WWI Germans. They are both very violent.
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Complex Oscillator @mfelps.bsky.social · 27/09/2026
Prepping little gift packages to some swell palookas.
Twos sets of zines: Crime Wave, Oil City, and Violence.
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Complex Oscillator @mfelps.bsky.social · 27/09/2026
Post something random, or you'll have an awful October!
Old ad saying "A Perfect Looking Nose Cane easily Be Yours" and shows a person with a strap on nose bra.
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A. Jordan DeWitt | Glue Trap Games @discodan.bsky.social · 27/09/2026
Check out my level of this sick new megadungeon, and toss us a follow on Kickstarter! With art by the inimitable @tonytranrpg.bsky.social, and contributions from a ton of fantastic writers, you’re not gonna want to miss this delve!
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Highland Paranormal Society @n8hps.bsky.social · 27/09/2026
luke's violence is so damn good lukegearing.itch.io/violence
lukegearing.itch.io
Violence by lukegearing
succinct rules for violence
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Complex Oscillator @mfelps.bsky.social · 26/09/2026
Whaaaaaasup?
Hindu alligator creature with horns and a mace or scepter. Green, wearing red pants.
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Complex Oscillator @mfelps.bsky.social · 26/09/2026
The first thing that's happened in nearly every interview I've done is someone offers me a glass of water or something to drink. If your beef is that someone brought their own, you're a fuckwit.
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Complex Oscillator @mfelps.bsky.social · 26/09/2026
Starting to see a lot of folks say "Yes, obviously you shouldn't use AI for creative stuff, but for work or programming it's so useful!" It doesn't matter if they're open weight or local, it's still the work of unpaid millions stolen by corporations to do your work for you.
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Complex Oscillator @mfelps.bsky.social · 26/09/2026
From SPI's Sword and Sorcery
Dragon on a pile of treasure, holding a wand "Gygax Dragonlord"
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Complex Oscillator @mfelps.bsky.social · 26/09/2026
"The Player whose turn is in progress is termed the Phasing Player." Yes, much more sensible than "active" or "current."
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Complex Oscillator @mfelps.bsky.social · 26/09/2026
Oh sugar, get into me. youtu.be/5gIhrPGyu6U
youtu.be
LCD Soundsystem - oh baby (Official Video)
YouTube video by LCDSoundsystemVEVO
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Complex Oscillator @mfelps.bsky.social · 26/09/2026
101 Year old magazine scanned. I managed to not hurt it too much.
Black and white illustration from a 101 year old magazine on yellowed paper. A man in black is firing a pistol as chaos engulfs the saloon. "Pards a five part story, part 1" "by Hugh Pendexter"
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Complex Oscillator @mfelps.bsky.social · 25/09/2026
This is a 101 year old magazine that @archive.org does not have a scan of. I bought it because I couldn't find a scan of it anywhere online. I wonder if they want to scan it when I'm done. I just need the first part of a five part story out of it.
101 year old copy of Adventure Magazine, a short story and novelette three time a month periodical. The cover features a man playing banjo on a blue background with bright yellow letters spelling Adventure.
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Tangent Joy @tjslotus.bsky.social · 25/09/2026
Heya!! Got a new blogpost up for Solar, this time doing a roundup of the planets, history, and stations for the game. If you want to read through some sci fi worldbuilding for a text based MMO launching later this year, go along and check it out! tangentjoy.blot.im/solar-devlog-5
tangentjoy.blot.im
Solar Devlog 5 - Tangent Joy
The last month or so has been pretty heavy on writing and a lot of that is unfortunately behind the scenes stuff; necessary planning for factions
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Complex Oscillator @mfelps.bsky.social · 25/09/2026
Reposting at a time other than the middle of the night.
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regularbird @regularbird.bsky.social · 25/09/2026
Plenty of community copies available for THE MAJORS. Try it out this weekend! regularbird.itch.io/the-majors
regularbird.itch.io
The Majors by regularbird
A baseball simulation
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Complex Oscillator @mfelps.bsky.social · 25/09/2026
The island building procedure I mentioned earlier. complexoscillations.blogspot.com/2026/09/isla...
complexoscillations.blogspot.com
Island Building Procedure
Begin with a single hex, on paper or on a screen. The general procedure will be: For each clear face of the hex(es), roll 1d6 and if you rol...
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Complex Oscillator @mfelps.bsky.social · 25/09/2026
More stickers!
Stickers: a sitting knight, a sea monster, a devil man, a beggar and a dog, a ghost killer.
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Complex Oscillator @mfelps.bsky.social · 25/09/2026
Printed about 30 zines so far, most unsellable because they're someone else's work, but I suspect I will be opening some sort of shop for those I might legally sell and the increasing number of weird stickers I'm making. What do people use to sell stuff these days?
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Complex Oscillator @mfelps.bsky.social · 24/09/2026
I feel like @levikornelsen.bsky.social here. I'm designing an algorithm to generate islands using just a d6. It seems to work. This is not my normal design space. When I can make the language make sense I'll put it on my blog, but it made this little island for me:
Abstract island made of gray hexes.
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Complex Oscillator @mfelps.bsky.social · 24/09/2026
"Repeat the procedure again, but this time only a 6 causes face attachment." This isn't even about a horror game.
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will jobst @willjobst.bsky.social · 24/09/2026
make games or else
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Complex Oscillator @mfelps.bsky.social · 24/09/2026
My favorite Coltrane. youtu.be/HIH3fNUsbnA
youtu.be
John Coltrane Quartet at Birdland - Afro Blue
YouTube video by 60otaku4
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Complex Oscillator @mfelps.bsky.social · 24/09/2026
I bought this, it's cool. I would have been too chicken shit to write it.
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