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Zach Tsiakalis-Brown Profile
Zach Tsiakalis-Brown

@MrZulubo

5,079
Followers
231
Following
665
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VR game dev. Creator of Zulubo Productions. Made Vertigo, Moondust, The Lab Hands-On, and other weird games. Vertigo 2 out now!

Seattle
Joined November 2015
Don't wanna be here? Send us removal request.
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@MrZulubo
Zach Tsiakalis-Brown
7 months
I'm leaving twitter. Elon has irreparably fucked this website and it's simply not fun to be on here anymore. If you want to keep in touch or follow my work, I've set up a linktree:
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@MrZulubo
Zach Tsiakalis-Brown
2 years
null propagation is NOT funny. Game engines only do this when they are very stressed.
@criminalreimu
reimu
2 years
Mfs be like "Wow this beta is so fun! I can't wait for the full game!" like bitch you won't be playing it, The Fog is Coming 😭😂😂
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@MrZulubo
Zach Tsiakalis-Brown
2 years
Damn it this popped off and I accidentally typed null propagation instead of nan propagation
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@MrZulubo
Zach Tsiakalis-Brown
8 months
Trying out making some short tutorials on lesser-known gamedev tricks! I want to share my esoteric knowledge
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@MrZulubo
Zach Tsiakalis-Brown
2 years
maurice hd???
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@MrZulubo
Zach Tsiakalis-Brown
2 years
@Tones3D Yeah write a shader involving convolution and set any pixel to NaN. Convoluting it will set nearby pixels to NaN too, repeat every frame and you get this
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@MrZulubo
Zach Tsiakalis-Brown
5 years
More fun with my volumetric parallax shader. Thinking with Gordles!
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@MrZulubo
Zach Tsiakalis-Brown
2 years
Very disappointed in the current direction of the vr industry. Facebook’s vision for vr is a sterile, corporate, privately owned dystopia, and it’s doing irreparable damage to public perception of vr. It’s hard to see a way forward from here honestly.
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@MrZulubo
Zach Tsiakalis-Brown
1 year
@drmistercody it's wild that there's universal consensus that touch screens are worse than physical dashboards but these tech bro designers keep adding them
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@MrZulubo
Zach Tsiakalis-Brown
3 years
At this 2 year anniversary I must reiterate: you’re not a real half life alyx fan unless you got in line at 3am to get the physical edition day 1 😤
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@MrZulubo
Zach Tsiakalis-Brown
1 year
me and @GetGianni communicating through jermas chat
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@MrZulubo
Zach Tsiakalis-Brown
2 years
Vertigo 2 is coming on March 30th, 2023. Here's a new gameplay trailer!
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@MrZulubo
Zach Tsiakalis-Brown
4 years
See people brushing this off because who cares about the nemesis system. But this is more about the precedent this sets! Game mechanics should not be patentable! If it becomes profitable to patent game mechanics en masse it would be reeeally bad for games as a whole
@IGN
IGN
4 years
WB Interactive has finally secured the patent to Middle-earth: Shadow of Mordor and Shadow of War's signature Nemesis system after multiple failed attempts.
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@MrZulubo
Zach Tsiakalis-Brown
5 years
SPOILER: At the end of HLA, hidden firmware on the Valve Index is activated, causing it to latch on to your skull, perform invasive bio-synthetic modification, and turn you into a transhuman soldier. Immediately following this, Valve will reveal they were the Combine all along.
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@MrZulubo
Zach Tsiakalis-Brown
4 years
Half life but it’s a stealth game where you play as g man and sneak around Gordon and stare at him from the distance
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@MrZulubo
Zach Tsiakalis-Brown
1 year
Extremely scummy to knowingly post AI generated nonsense and pass it off as a review.
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@MrZulubo
Zach Tsiakalis-Brown
2 years
Vertigo 2 is OUT NOW! This has been my most ambitious project ever, and I hope it was worth the wait.
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@MrZulubo
Zach Tsiakalis-Brown
5 years
Made a magical orb based on a writeup by @HarryAlisavakis , with a few additions of my own!
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@MrZulubo
Zach Tsiakalis-Brown
5 years
Perks of having Valve friends
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@MrZulubo
Zach Tsiakalis-Brown
2 years
It wouldn't be a real indie fps without @GetGianni . That's why he's joined the cast of Vertigo 2, playing the charismatic security robot Officer 13.
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@MrZulubo
Zach Tsiakalis-Brown
5 years
Starting to see people saying the #HalfLifeAlyx trailer is all keyframed, that there’s no way VR gameplay is that smooth. Y’all are gonna feel silly when you try it and realize no, the game literally just plays like that
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@MrZulubo
Zach Tsiakalis-Brown
5 years
@MadScientistRCT huh, mine are working ok. Try verfiying integrity of game files
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@MrZulubo
Zach Tsiakalis-Brown
3 years
bold choice in halo infinite to have you go into the citadel from half life 2
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@MrZulubo
Zach Tsiakalis-Brown
5 years
It's weird, but this is one of the most satisfying interactions I think I've ever put together in VR
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@MrZulubo
Zach Tsiakalis-Brown
2 years
@GreenDave113 It looks like these volumetrics are actually world space (likely only updated when on screen though) so moving to new areas gives you some time before it catches up
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@MrZulubo
Zach Tsiakalis-Brown
5 years
Boneworks: We realistically modeled the physics of the entire body, you can even hang from a crowbar! Vertigo 2: s t r e t c h e y a r m
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@MrZulubo
Zach Tsiakalis-Brown
4 years
more detailing lol
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@MrZulubo
Zach Tsiakalis-Brown
4 years
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@PoorlyAgedStuff
Poorly Aged Things
4 years
happy birthday
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@MrZulubo
Zach Tsiakalis-Brown
4 years
High fidelity VR interactions for a very half-lifey health station. Now with home grown rope physics. sound on!
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@MrZulubo
Zach Tsiakalis-Brown
10 months
Vertigo 2 got PCVR GOTY!!
@RtoVR
Road to VR
10 months
Road to VR’s 2023 Game of the Year Awards Catch them all 👉
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@MrZulubo
Zach Tsiakalis-Brown
5 years
for extra immersion play half life alyx while in an actual quarantine zone
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@MrZulubo
Zach Tsiakalis-Brown
8 months
Secret Gamedev Tricks episode 2: Specular Probes. This is my solution to a lack of good specular highlights when using baked lighting.
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@MrZulubo
Zach Tsiakalis-Brown
5 years
It was my last day at Valve today. Thanks so much to everyone that gave me the amazing opportunity to work here for the last couple years. I’m sure I’ll return some day, but for now I’ll be making the weird jump back to being a student.
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@MrZulubo
Zach Tsiakalis-Brown
2 years
Vertigo 2 first week in review: ✅ "Essential" rating from UploadVR ✅ 9.5/10 rating from Road to VR ✅ 98% positive reviews on Steam ✅ 5 bug fix patches ☭ 62% of players joined the communists ⬡ 38% of players joined the church
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@MrZulubo
Zach Tsiakalis-Brown
2 years
lets fucking go, 7th most popular upcoming on steam
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@MrZulubo
Zach Tsiakalis-Brown
3 years
@DUSKdev I drew it
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@MrZulubo
Zach Tsiakalis-Brown
9 months
gaming
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@MrZulubo
Zach Tsiakalis-Brown
3 years
one of my fave vr dev things is making satisfying chunky tactile interactions
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@MrZulubo
Zach Tsiakalis-Brown
3 years
technical VFX tip, bake normals of smoke by lighting it with 3 RGB lights for the respective normal map axes.
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@MrZulubo
Zach Tsiakalis-Brown
5 years
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@MrZulubo
Zach Tsiakalis-Brown
2 years
yes I've been playing Control, how could you tell
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@MrZulubo
Zach Tsiakalis-Brown
5 years
Announcing Vertigo Remastered. A complete overhaul of the 2016 title utilizing modern tech, brand new systems created for Vertigo 2, updated level designs, enemies, and bosses. Check out 10 minutes of gameplay here:
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@MrZulubo
Zach Tsiakalis-Brown
2 years
do people like chapter titles in vr games
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@MrZulubo
Zach Tsiakalis-Brown
5 years
This is misleading, when you set the game to nightmare difficulty the doom slayer becomes... very stoppable
@DOOM
DOOM
5 years
RAZE HELL as the unstoppable DOOM Slayer in DOOM Eternal. The only thing they fear… is you.
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@MrZulubo
Zach Tsiakalis-Brown
3 years
I'm playing around with 3D terrain tiles, shoutout to @OskSta for his guide about on-the-dual tiles. This extends them to 3D for some lovely rounded corners in all dimensions!
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@MrZulubo
Zach Tsiakalis-Brown
1 year
This stings more because it's lying about my game of course, but this is becoming a real problem. The internet is being polluted with AI hallucinations.
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@MrZulubo
Zach Tsiakalis-Brown
2 years
@ostonox 9/11 was stopped by the world trade center
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@MrZulubo
Zach Tsiakalis-Brown
4 years
so uh, i wrote a vtuber avatar app using apple's ARKit and Unity
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@MrZulubo
Zach Tsiakalis-Brown
4 years
i'm programming rope physics
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@MrZulubo
Zach Tsiakalis-Brown
1 year
The Vertigo 2 Bottomless Update is out now! A major content update including new playable characters, gameplay mutators, and a level editor! Free to owners of Vertigo 2!
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@MrZulubo
Zach Tsiakalis-Brown
2 years
VERTIGO 2 DROPS IN 24 HOURS
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@MrZulubo
Zach Tsiakalis-Brown
5 years
splish splosh compute shaders
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@MrZulubo
Zach Tsiakalis-Brown
6 years
I just figured out how to do screen shake in VR without making the user throw up! Here's my code, feel free to test it out/use it in your game.
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@MrZulubo
Zach Tsiakalis-Brown
1 year
fuck unity, man. How is it possible to mismanage a company so badly. Years and years of dumb features nobody asked for while the core of the engine rots, and then they try to pull this when they realize they're losing money. Incredibly embarrassing.
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@MrZulubo
Zach Tsiakalis-Brown
2 years
vr was optimistically looking to be a new medium for art, experiences, and games. It is turning into just another chance for billionaires to hoard money and power. I want no part in that.
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@MrZulubo
Zach Tsiakalis-Brown
2 years
@lackingsaint just immediately started doming cops. what a cool dude
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@MrZulubo
Zach Tsiakalis-Brown
5 years
Made another hl remix. Can't help it. HL2 Ep2 - Vortal Combat. #ReportTheVort
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@MrZulubo
Zach Tsiakalis-Brown
2 years
The problem with the modern vr gaming industry is that vertigo 2 is not out yet. Once vertigo 2 comes out all these problems will be solved, you'll see
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@MrZulubo
Zach Tsiakalis-Brown
3 years
fuck it, Vertigo 2 screenshot time
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@MrZulubo
Zach Tsiakalis-Brown
2 years
vertigo 2 level editor is in development 🙂
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@MrZulubo
Zach Tsiakalis-Brown
4 years
made one of those trendy mini #Blender3d tutorials
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@MrZulubo
Zach Tsiakalis-Brown
1 year
almost at 1000 reviews can we make it??
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@MrZulubo
Zach Tsiakalis-Brown
2 years
I know most people in the tech industry are utterly lost in the sauce, but facebook is one of the most hated corporations on earth, and vr becomes more of a joke every time zuckerberg puts his face in an ad for virtual excel or whatever
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@MrZulubo
Zach Tsiakalis-Brown
5 years
Now here's a fun way to take screenshots in VR
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@MrZulubo
Zach Tsiakalis-Brown
2 years
Facebook is openly admitting that their long term plan is to have the workers forced into virtual offices that they control. This is cartoon cyberpunk villain behaviour
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@MrZulubo
Zach Tsiakalis-Brown
5 years
hey, those who have press builds of Half-Life Alyx, stop leaking stuff or I'll beat you up 😤
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@MrZulubo
Zach Tsiakalis-Brown
2 years
all vr games should have a selfie camera
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@MrZulubo
Zach Tsiakalis-Brown
5 years
they're so cute when they're small.
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@MrZulubo
Zach Tsiakalis-Brown
3 years
made a lil fan animation for @DUSKdev 's new game Iron Lung!
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@MrZulubo
Zach Tsiakalis-Brown
5 years
Finally cleaned up and released this system that allows baked lights to cast specular highlights in #unity3d . A must-try for lovers of performance and shiny things.
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@MrZulubo
Zach Tsiakalis-Brown
2 years
get mauriced (in vr)
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@MrZulubo
Zach Tsiakalis-Brown
11 months
New release date trailer for Vertigo 2 on the PSVR2!! Play on December 12th, 2023. Physical edition coming February 2024.
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@MrZulubo
Zach Tsiakalis-Brown
2 years
vertigo 2 #screenshotsaturday 😳
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@MrZulubo
Zach Tsiakalis-Brown
1 year
Sorry for the short notice here, but the Vertigo 2 PSVR2 release has been delayed. I'll share the new release date as soon as I know!
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@MrZulubo
Zach Tsiakalis-Brown
2 years
decided to share some vertigo 2 character models for the community to have fun with
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@MrZulubo
Zach Tsiakalis-Brown
4 years
PSA to unity VR devs. If you're using Single Pass Stereo and the post processing package, your game is getting downsampled by 50%. This is a really stupid error that has likely affected many shipped games. Fortunately, there's an easy fix.
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@MrZulubo
Zach Tsiakalis-Brown
9 months
Vertigo 2 is out now on PS5, at last!
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@MrZulubo
Zach Tsiakalis-Brown
4 years
disclaimer, this is not a guarantee I'll be shipping anything but hey, this is pretty neat
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@MrZulubo
Zach Tsiakalis-Brown
5 years
take back every criticism I've ever made of unity, here's the new progressive GPU lightmapper baking lighting in 8 frickin seconds
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@MrZulubo
Zach Tsiakalis-Brown
1 year
Ironically, apple's vision pro displays an astounding lack of vision. Apple desperately wants another iphone-level success, but all they can invent is new ways to look at your iphone
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@MrZulubo
Zach Tsiakalis-Brown
1 year
A huge update to Vertigo 2 is coming on November 10th, one week away! Here's the trailer for the Bottomless Update!
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@MrZulubo
Zach Tsiakalis-Brown
2 years
holy shit, id apparently forced mick to work for a year without pay, paid him less than half of what they owed, and then publicly slandered him as retaliation when he complained. I hate the amount of exploitation in the games industry
@Mick_Gordon
Mick Gordon
2 years
Marty Stratton, @idSoftware Studio Director, lied about @DOOM Eternal's OST events in a Reddit post that used disinformation to blame me entirely for its failure Later, he offered me a six-figure sum to never speak about it The truth is more important.
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@MrZulubo
Zach Tsiakalis-Brown
4 years
Vertigo Remastered is coming in July, free for owners of Vertigo. Check out the full trailer at
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@MrZulubo
Zach Tsiakalis-Brown
4 years
Vertigo just got more Vertigo. Pick up the Vertigo Remastered Sandbox DLC on October 15th. DLC and base game will be on sale, so wishlist now!
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@MrZulubo
Zach Tsiakalis-Brown
2 years
@biggestjoel Yeah a lot of people actually think it’s cool and good that the police are murderous so it’s easier for them to see it as bad when they don’t kill. The usual “what if the black teenager had it coming” deflection doesn’t work
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@MrZulubo
Zach Tsiakalis-Brown
10 months
steam page looking kinda fresh
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@MrZulubo
Zach Tsiakalis-Brown
5 years
yum, quantum juice
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@MrZulubo
Zach Tsiakalis-Brown
1 year
The Vertigo 2 level editor is now in very early open beta. Try it out if you want, and give feedback! It's available on a beta branch on steam. More info -
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@MrZulubo
Zach Tsiakalis-Brown
5 years
🤔
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@MrZulubo
Zach Tsiakalis-Brown
2 years
It's rare to see real volumetrics used for gameplay purposes! This is cool. Very pretty shader too
Today we're excited to announce Counter-Strike 2. Counter-Strike 2 is an overhaul to every system, every piece of content, and every part of the C-S experience. First, let's talk about smoke grenades:
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@MrZulubo
Zach Tsiakalis-Brown
4 years
spicy compute shader #screenshotsaturday
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@MrZulubo
Zach Tsiakalis-Brown
1 year
oh neat, Vertigo 2 got featured in steam's summer sale trailer!
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@MrZulubo
Zach Tsiakalis-Brown
5 years
Really happy with the animation for this little dude
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@MrZulubo
Zach Tsiakalis-Brown
2 years
now 2nd most popular!
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@MrZulubo
Zach Tsiakalis-Brown
2 years
lets fucking go, 7th most popular upcoming on steam
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@MrZulubo
Zach Tsiakalis-Brown
4 years
hl1 vibes
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@MrZulubo
Zach Tsiakalis-Brown
4 years
at last, boring company living up to its name. This "technology" is extremely boring. also stupid. also bad
@mickakers
Mick Akers
4 years
Footage of what it looks like when a @Tesla is traveling through the @boringcompany ’s Convention Center Loop. #vegas #boringcompany
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@MrZulubo
Zach Tsiakalis-Brown
1 year
fellas is it woke to be good at video games
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@MrZulubo
Zach Tsiakalis-Brown
2 years
Noticed many people asking about psvr2 support for vertigo 2. I’m a solo developer so I’ve only had the time to target a pc release, but I would love to port to psvr in the future. It’s definitely a possibility!
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