Permanently stuck in #16bit world and obsessed in developing on my Sega #Megadrive. Check out #SGDK, a free and open source Sega Mega Drive Development Kit 🙂

Joined November 2011
54 Photos and videos
Stephane retweeted
Same world. Brand new look. Demons of Asteborg (2021) → Demons of Asteborg DX (2026) Same levels rebuilt from scratch for Game Boy Advance. 🎮Free playable demo: neofidstudios.itch.io/demons… #GameBoyAdvance #MegaDrive #PixelArt #RetroGaming #IndieGameDev
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Stephane retweeted
Optimization is nearly complete. I’m now trying to free additional VRAM/tile space so I can integrate more sprites. I’m confident I can make it work...Properly converting the graphics will take time, given all the manual adjustments involved. :-) #SegaGenesis #MegaDrive
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Stephane retweeted
ROM demo of the game Shaolin Carcará 2 avaiable for free download. Play the complete first stage, and first part of second stage. download.mangangateam.com/ca… #sgdk #segagenesis #SEGA
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Stephane retweeted
Well @justjamie1983 just made my weekend even better with a truly in-depth coverage of mega r-type youtu.be/u9rcyPU4zy4?si=SQFT… As he says in the video, the game is done now and is even better than the demo 1.3 he’s checking out. I hope I can update the demo soon and even better update everyone in the release when everything will be clear. Thanks to Jamie and to everyone for the support so far!
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Stephane retweeted
Aqui está minha atualização sobre zoom no mega drive, é só uma tech demo, fiz em algumas horas, da pra trabalhar em cima e melhorar algumas coisas, mas eu estou satisfeito com o volume de stream de dados, esta fazendo DMA no cenario e nos sprites. #megadrive #segagenesis
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Stephane retweeted
Update on the game's progress 🐉🔥 ✅ I created the game's Sound Engine. Now it's much simpler to add sounds to a move, and also to share sounds of common moves between fighters. #SGDK #megadrive #dragonball #sega #homebrew
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Stephane retweeted
カプコンの名作『ブラックドラゴン』(海外名:Black Tiger)が、名機「メガドライブ」に勝手移植中!! 過去にも『ブラックドラゴン』は、PCエンジンやネオジオへ勝手移植されたことはあった。 だが、メガドライブへの勝手移植は、今回が初なンだッッ!! youtube.com/watch?v=utvIpHjE…
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Stephane retweeted
もうひとつメガドライブの珍しいモノを メガドラの量産品のVDP(画像処理プロセッサ)は、315-5313 とナンバリングされてますが、プロトタイプでは実際にVDPを開発した「YAMAHA YM7101」と書かれています YAMAHAが開発したのは公然の事実ですが、プロトタイプの画像はなかなか見れないと思います
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Stephane retweeted
Hey everyone. We just received the very first PCBs for the #GBA version of Demons of Asteborg DX, and we wanted to share them with you. It was quite a puzzle trying to fit everything into the strict 32 MB limit of the console, but we made it work. 👾
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Stephane retweeted
Uɴʀᴇᴀʟ: #SEGA #Saturn vs #Pentium4 In the XL2 demo for the Saturn with that great draw distance that makes the large environments a visual delight, there is still room for improvement: compared to the original and the Pentium 4, but we'll see what the new updates bring
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Stephane retweeted
A brand new action-platformer running on real Game Boy Advance hardware in 2026. Demons of Asteborg DX, made by a small French team, on actual cartridges. Free playable demo: neofidstudios.itch.io/demons… #GameBoyAdvance #NeoGeo #IndieGameDev #RetroGaming #Steam
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Stephane retweeted
Been working on a SNES first person horror shooter for the last few months. Built from scratch in C and 65816 assembly. Running on real hardware (this clip is from a modified emulator). Here’s a short clip. #SNES #RetroFPS #IndieDev #Homebrew #Games
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Stephane retweeted
Demons of Asteborg DX is now on KuneKune. 🔥 #GBA · #NeoGeo · #Switch · #Steam The final pre-order campaign is live. youtu.be/xgJmr0UYUEw
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Stephane retweeted
** Sega MD 3D engine update 7 ** Speed up rendering by another 15-20 % ! Massive unrolling of the line drawing hotpath has seen a good pickup in the rendering although further improvements are needed , particularly for small triangles as most of the overhead is not in the drawing ( more time in setup vs drawing ) . Added partial drawing of Quads , this was a major pain due to all the edge cases , as Quads are basically a triangle top (optional) - a middle trapezium and a bottom triangle (optional) and any part can be clipped or offscreen . Implemented a frame pacing algorithm for the camera so as Frame rate fluctuates with detail the forward Z rate is altered, its as bit janky still . Track control just snaps back to position after it runs through a short sequence. Work continues on Parodius and we have some cool things to show in a video soon . #SGDK #SegaGenesis #MegaDrive
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Stephane retweeted
** 3D Engine Update 6 ** New Buffer System. 15-20% Faster !! Using Planes A and B interleaved horizontally we can get the best of all worlds with a near continuous frame buffer for fast Triangle & Quad writes and still use DMA for fast sending of the RAM frame buffer to VRAM. Normally you get one benefit without the other leading to tradeoffs. There is a caveat ofcourse, I lose a spare plane , however thats not a large concern for what im trying to achieve, i still have the full sprite load if i need to simulate ground etc - we can also multiplex sprites if needed. So each plane is full of half fill tiles ( 4 pixels set in each tile row ) , which are then slightly offset to make the full image. Also changed to H40 mode for faster DMA albiet centered view , plenty of Hud options for side panels etc. What is quite cool is the layout in VRAM is very similar to what you see on screen just with some striping . VRAM layout to the right. Theres no more VRAM used verse a normal double buffer , the trick is here to send the buffer in one frame always as theres no room for a double buffer in vram. I have to implement partial ofscreen drawing yet hence the snapping from front to back you see still . #SGDK #SegaGenesis #SegaMegadrive
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Stephane retweeted
BattleCity Megadrive - RandomBitsOnFire randombitsonfire.com/proyect…
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Stephane retweeted
MEGAWiFi ADDON!! y si pudiera jugar On Line con mi consola?🤔 Por fin llego! Megadrive, más viva que nunca. ¿Quién dijo que lo retro estaba anticuado? Read more at 👉 randombitsonfire.com/proyect… #megadrive #retro #gaming #tecnologia #juegos #technology
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