Danny Lee

Game Developer
Tech director @ ember and blade
Talking about game dev tech, AI, and engineering mentorship.

[Danny Lee @sonanDev]

@eiasninelives someone on our team just beat the fly with 6,996 points.

humanity still has a chance lol

[Danny Lee @sonanDev]

someone on our team just beat the fly with 6,996 points.

humanity still has a chance 🪰

[Danny Lee @sonanDev]

the fly brain can now compete with humans. 🪰
we trained a match-3 AI using a real fruit fly’s neural wiring.

Now it wants to challenge you. surely you won’t lose to a fly… right?

Challenge => https://t.co/lgWRaZBCAH

#FlyBrain #AI #IndieGame

[Danny Lee @sonanDev]

confession: i haven’t beaten the fly once. it..?.. he..?.. fly’s too fast.

[Danny Lee @sonanDev]

Hi, I'm Danny, I handle tech on Ember & Blade.

Mac optimization is something we're actively working on. Our dev machine is an M3 Pro, so as you noticed, we've been tuning mostly around Medium...so sorry. Max and High settings are still on the list, and we'll keep pushing on it.

Thanks for playing!!!

[Danny Lee @sonanDev]

Show us what you've got.

[Ember and Blade @EmberandBlade]

Ember and Blade Demo 2.0 is OFFICIALLY LIVE! 🔥🕹️
Massive combat overhaul, dynamic combo systems, and the explosive debut of the Shotgun!
#EmberAndBlade #GameTrailer #SteamDemo #IndieGame

🎬 Watch the official Demo 2.0 trailer now!

[Danny Lee @sonanDev]

@eiasninelives Rubber duck is undefeated

[Danny Lee @sonanDev]

Yes, this is Rubber & Duck.

Demo 2.0 is out now - play it on Steam, Epic Games Store, PS5, and Xbox.

P.S. No rubber duck in the game. Currently.

[J. Kim 🛠️ 𝐄𝐦𝐛𝐞𝐫 𝐚𝐧𝐝 𝐁𝐥𝐚𝐝𝐞 @eiasninelives]

𝐍𝐨, 𝐭𝐡𝐞 𝐝𝐮𝐜𝐤 𝐢𝐬 𝐚 𝐥𝐢𝐞.
But everything else is real.

Ember and Blade DEMO 2.0 is out now.
Play it and wishlist it.
I'd… appreciate it.

👇 Link in the thread below.

[Danny Lee @sonanDev]

My first dev note: 1 vs. 1,000: Achieving Technical Excellence

Finally got around to writing my first dev note. It covers similar ground to my Unite 2026 talk — think of it as a wrap-up of that material. I've picked up a lot from other developers on X(formerly Twitter) and forums over the years, so I hope this is useful to someone working on Unity optimization.

#Unity3D #Unity #Gamedev

https://t.co/rMihLtA4U8

[Danny Lee @sonanDev]

Sharing our Unite Seoul talk on building a 3D Vampire Survivors-like, the kind with hundreds of enemies on screen at once.

"Hundreds of Enemies, a Light Build": how Ember & Blade draws the horde, keeps the fight readable, and still ships small.

Deck is now up in English(93 slides, video included):
https://t.co/OWd4DGDpcu

Talk (KR):
https://t.co/zXQLnDzfSl

#GameDevs #Unity #Unity3D #Unite26

[J. Kim 🛠️ 𝐄𝐦𝐛𝐞𝐫 𝐚𝐧𝐝 𝐁𝐥𝐚𝐝𝐞 @eiasninelives]

We’ve nearly wrapped up the features for the demo update and are moving into QA. That means the team gets to capture footage for the trailer while I get busy editing it.

There are more ways to combine everything now, so I’m still figuring out what to show and how best to show it.

First step: shoot a lot and see what ends up looking best. 🎞️

[Danny Lee @sonanDev]

@sublimeartsio @eiasninelives The core issues were draw calls and skinned animations. Other than that, most of it was hitching lag, which was driven by shader cache, memory, AI, and physics in that order.

[J. Kim 🛠️ 𝐄𝐦𝐛𝐞𝐫 𝐚𝐧𝐝 𝐁𝐥𝐚𝐝𝐞 @eiasninelives]

Blasting 400 enemies off the screen at once in a 3D roguelite action game is a thrill. But what was it like to actually make that happen?

At UNITE Seoul 2026, Ember and Blade Technical Director Dohaeng Lee (@sonanDev) and Technical Artist Jinhee Lee shared everything they learned along the way.

The link is in the thread below. 👇

What are you waiting for? Go check it out!

[Danny Lee @sonanDev]

It’s finally out! 🚀

It was an absolute honor to speak at Unite on the very stage where Unity 7 was announced!

Our TA and I got the chance to share our engineering and tech-art insights on building a premium Survivor-like game in Unity.

Huge thanks to everyone who attended! Check out the recap here:

https://t.co/ZSAooj8sZH

#Unite #UniteSeoul #Unity3D #Unity7 #GameDev #TechArt #SurvivorLike

[Danny Lee @sonanDev]

@eiasninelives Let’s goooo!!

[Danny Lee @sonanDev]

Hey!! Track 1(13:50 to 14:10 KST), that's me! 🚀 I'll be sharing our practical optimization tips tomorrow. Hope to see you there! :)

#Unite26 #Unity #GameDev

[J. Kim 🛠️ 𝐄𝐦𝐛𝐞𝐫 𝐚𝐧𝐝 𝐁𝐥𝐚𝐝𝐞 @eiasninelives]

Not quite sure how this happened, but I’ll be giving a keynote at Unite Seoul 2026 tomorrow!

From 13:50 to 14:10 in Track 1 (Rooms 101–102), Technical Director Dohaeng Lee and Technical Artist Jinhee Lee will also present "Hundreds of Enemies, One Lightweight Build: Visuals and Optimization for a 3D Survivors-like in Ember and Blade."

Hope you’ll check it out!
We’ll share the presentation materials afterward.

https://t.co/IxfmBXG9du

[Danny Lee @sonanDev]

'What players see' vs 'What’s actually happening behind the loading screen' 💀

#EmberAndBlade #GameDev #Unity3D #BehindTheScenes

[ゲームメーカーズ @GameMakersJP]

『EVE Online』の開発に使われたゲームエンジン「Carbon Engine」がオープンソース化
https://t.co/0p5TuVm3ol

20年以上の歴史をもつMMORPG『EVE Online』の開発元が、大規模オンラインマルチプレイゲームの長期運用を目的に設計した内製エンジン。ソースコードの大半はMITライセンスで提供されている