# CPC Plus 128 kb RAM - prototype **URL:** \ **Category:** Videos\ **Created:** [September 19, 2026, 5:51am UTC](https://forum.cpcwiki.eu/t/cpc-plus-128-kb-ram-prototype/468 "2026-09-19T05:51:49Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![XeNoMoRPH](https://forum.cpcwiki.eu/user_avatar/forum.cpcwiki.eu/xenomorph/32/28_2.png) [@XeNoMoRPH](https://forum.cpcwiki.eu/u/XeNoMoRPH)\ **Post date:** [September 19, 2026, 5:51am UTC](https://forum.cpcwiki.eu/t/cpc-plus-128-kb-ram-prototype/468/1 "2026-09-19T05:51:49Z")
> Here is a second video of the small prototype I’m working on. As I mentioned before, we’ve lowered the frame rate to 25 Hz and added hardware-level sprite management to bring the screen to life with signs, trees, cars, and some physics effects for the player’s vehicle. > The graphics are still a bit rough, but the project is starting to take shape. See you soon with more updates. > Take good care of yourselves and your loved ones. CPC Plus 128 kb RAM !!! , by Frédéric Poesy [Golem13] ---
**Author:** ![Gryzor](https://forum.cpcwiki.eu/user_avatar/forum.cpcwiki.eu/gryzor/32/7_2.png) [@Gryzor](https://forum.cpcwiki.eu/u/Gryzor)\ **Post date:** [September 19, 2026, 7:17am UTC](https://forum.cpcwiki.eu/t/cpc-plus-128-kb-ram-prototype/468/2 "2026-09-19T07:17:49Z")
Niiice! Someone remake Chase HQ 🙂 ---
**Author:** ![dodogildo](https://forum.cpcwiki.eu/user_avatar/forum.cpcwiki.eu/dodogildo/32/31_2.png) [@dodogildo](https://forum.cpcwiki.eu/u/dodogildo)\ **Post date:** [September 19, 2026, 8:11am UTC](https://forum.cpcwiki.eu/t/cpc-plus-128-kb-ram-prototype/468/3 "2026-09-19T08:11:26Z")
Another reason to mod your gx4000 to 128k if you already didn’t. [![](https://forum.cpcwiki.eu/uploads/default/original/1X/6b99fe7ea32173e675a283be4f631edb82a83172.jpeg "Amstrad GX4000 - 128k S-Ram mod") ](https://www.youtube.com/watch?v=3vgKoG_qG3Q) ---
**Author:** ![AndyCadley](https://forum.cpcwiki.eu/user_avatar/forum.cpcwiki.eu/andycadley/32/177_2.png) [@AndyCadley](https://forum.cpcwiki.eu/u/AndyCadley)\ **Post date:** [September 19, 2026, 8:48am UTC](https://forum.cpcwiki.eu/t/cpc-plus-128-kb-ram-prototype/468/4 "2026-09-19T08:48:03Z")
Looks very cool, I’ve been wondering if you could do something like this to get a faster racer myself. Car could do with a colour change because it currently blends into the road, but that’s pretty minor stuff. ---
**Author:** ![XeNoMoRPH](https://forum.cpcwiki.eu/user_avatar/forum.cpcwiki.eu/xenomorph/32/28_2.png) [@XeNoMoRPH](https://forum.cpcwiki.eu/u/XeNoMoRPH)\ **Post date:** [September 24, 2026, 8:07am UTC](https://forum.cpcwiki.eu/t/cpc-plus-128-kb-ram-prototype/468/5 "2026-09-24T08:07:34Z")
New version !!! , Thanks to @roudoudou for sharing. ---
**Author:** ![XeNoMoRPH](https://forum.cpcwiki.eu/user_avatar/forum.cpcwiki.eu/xenomorph/32/28_2.png) [@XeNoMoRPH](https://forum.cpcwiki.eu/u/XeNoMoRPH)\ **Post date:** [September 27, 2026, 7:44am UTC](https://forum.cpcwiki.eu/t/cpc-plus-128-kb-ram-prototype/468/6 "2026-09-27T07:44:11Z")
> Hello everyone. > Today I’m back with an update on the project, featuring a third video and a change of atmosphere. > All the routines have been significantly optimized, and quite a few tweaks have been made. > Obviously, nothing is final yet; this is still a ‘Proof of Concept’ (POC), which is evolving, and quite a few things are still a bit rough around the edges (sprites, graphics, enemies, etc.) > Some sound effects are in place, but they’re not yet fully functional, so there’s no sound in today’s video. > Maybe that’ll be in the next iteration… you never know **[Frédéric Poesy]** ---
**Author:** ![Gryzor](https://forum.cpcwiki.eu/user_avatar/forum.cpcwiki.eu/gryzor/32/7_2.png) [@Gryzor](https://forum.cpcwiki.eu/u/Gryzor)\ **Post date:** [September 27, 2026, 1:33pm UTC](https://forum.cpcwiki.eu/t/cpc-plus-128-kb-ram-prototype/468/7 "2026-09-27T13:33:25Z")
Looking so nice. I wonder if there’s a technical reason behind the cars being greyscale? ---
**Author:** ![AndyCadley](https://forum.cpcwiki.eu/user_avatar/forum.cpcwiki.eu/andycadley/32/177_2.png) [@AndyCadley](https://forum.cpcwiki.eu/u/AndyCadley)\ **Post date:** [September 27, 2026, 2:14pm UTC](https://forum.cpcwiki.eu/t/cpc-plus-128-kb-ram-prototype/468/8 "2026-09-27T14:14:40Z")
It would be hard to imagine what, but a dark grey car on a dark grey road isn’t a great choice. My guess is the assets have been converted automatically and the AI isn’t smart enough to understand the need for the car to stand out from the road. ---
**Author:** ![Arnoldemu](https://forum.cpcwiki.eu/letter_avatar_proxy/v4/letter/a/9f8e36/32.png) [@Arnoldemu](https://forum.cpcwiki.eu/u/Arnoldemu)\ **Post date:** [September 27, 2026, 2:30pm UTC](https://forum.cpcwiki.eu/t/cpc-plus-128-kb-ram-prototype/468/9 "2026-09-27T14:30:49Z")
My guess is raster colour and screen address splits for the road and sprites over the top especially for the car. Sprites will all share a palette. Sprites perhaps from Atari ST or Amiga and converted for testing!? The font in the top-left for the numbers looks like the one a lot of AI assisted game have so maybe some amount of AI involvement. The main thing here. Very nice result, very smooth, fast, lovely sense of speed and road undulation, looking forward to playing. ---
**Author:** ![DanyPPC](https://forum.cpcwiki.eu/user_avatar/forum.cpcwiki.eu/danyppc/32/536_2.png) [@DanyPPC](https://forum.cpcwiki.eu/u/DanyPPC)\ **Post date:** [September 27, 2026, 2:49pm UTC](https://forum.cpcwiki.eu/t/cpc-plus-128-kb-ram-prototype/468/10 "2026-09-27T14:49:29Z")
It is growing well. ---
**Author:** ![overange](https://forum.cpcwiki.eu/user_avatar/forum.cpcwiki.eu/overange/32/249_2.png) [@overange](https://forum.cpcwiki.eu/u/overange)\ **Post date:** [September 27, 2026, 3:58pm UTC](https://forum.cpcwiki.eu/t/cpc-plus-128-kb-ram-prototype/468/11 "2026-09-27T15:58:45Z")
Cool mod, as this video is in french, for those that are not aware in YouTube you can change the audio to English or what ever you like, the YouTube audio language has got really good. ---
**Author:** ![XeNoMoRPH](https://forum.cpcwiki.eu/user_avatar/forum.cpcwiki.eu/xenomorph/32/28_2.png) [@XeNoMoRPH](https://forum.cpcwiki.eu/u/XeNoMoRPH)\ **Post date:** [September 27, 2026, 5:04pm UTC](https://forum.cpcwiki.eu/t/cpc-plus-128-kb-ram-prototype/468/12 "2026-09-27T17:04:09Z")
> [@AndyCadley](#): > > Sería difícil imaginar qué, pero un coche gris oscuro sobre una carretera gris oscura no es una gran elección. Mi suposición es que los elementos gráficos se han convertido automáticamente y la IA no es lo suficientemente inteligente como para entender la necesidad de que el coche destaque sobre la carretera. No AI was used in this prototype, for sure. ---
**Author:** ![Anthony\_Flack](https://forum.cpcwiki.eu/user_avatar/forum.cpcwiki.eu/anthony_flack/32/35_2.png) [@Anthony\_Flack](https://forum.cpcwiki.eu/u/Anthony_Flack)\ **Post date:** [September 28, 2026, 12:02am UTC](https://forum.cpcwiki.eu/t/cpc-plus-128-kb-ram-prototype/468/13 "2026-09-28T00:02:05Z")
It’s looking great. I wonder if the engine can handle two opponent cars on the track at once? ---
**Author:** ![Rhino](https://forum.cpcwiki.eu/letter_avatar_proxy/v4/letter/r/a5b964/32.png) [@Rhino](https://forum.cpcwiki.eu/u/Rhino)\ **Post date:** [September 30, 2026, 1:30am UTC](https://forum.cpcwiki.eu/t/cpc-plus-128-kb-ram-prototype/468/14 "2026-09-30T01:30:34Z")
Runs pretty smoothly, and the perspective looks pretty good. I’m no expert on the Plus, but I’d say it makes good use of its hardware. Congratulations. ---
**Author:** ![cpcitor](https://forum.cpcwiki.eu/user_avatar/forum.cpcwiki.eu/cpcitor/32/321_2.png) [@cpcitor](https://forum.cpcwiki.eu/u/cpcitor)\ **Post date:** [October 1, 2026, 8:49pm UTC](https://forum.cpcwiki.eu/t/cpc-plus-128-kb-ram-prototype/468/15 "2026-10-01T20:49:53Z")
I’m confused. Is this topic about a mod of a GX-4000 to reach 128k RAM? Or a test of a yet-to-be-named game? Or both? Still, extremely impressive result for a CPC+! ---
**Author:** ![slider271](https://forum.cpcwiki.eu/user_avatar/forum.cpcwiki.eu/slider271/32/501_2.png) [@slider271](https://forum.cpcwiki.eu/u/slider271)\ **Post date:** [October 1, 2026, 8:52pm UTC](https://forum.cpcwiki.eu/t/cpc-plus-128-kb-ram-prototype/468/16 "2026-10-01T20:52:46Z")
I think it’s almost 100% about an upcoming game idea/test, with a little comment about why we should upgrade our GX4000s to have 128K memory 😁 ---
**Author:** ![cpcitor](https://forum.cpcwiki.eu/user_avatar/forum.cpcwiki.eu/cpcitor/32/321_2.png) [@cpcitor](https://forum.cpcwiki.eu/u/cpcitor)\ **Post date:** [October 1, 2026, 9:10pm UTC](https://forum.cpcwiki.eu/t/cpc-plus-128-kb-ram-prototype/468/17 "2026-10-01T21:10:54Z")
> [@XeNoMoRPH](#): > > Here is a second video of the small prototype I’m working on. @XeNoMoRPH I appreciate that you post a lot of interesting info from other source. It would be even better if you always include context and external links to the source material, not just a video and quoted text. Keep up the good work! ---
**Author:** ![XeNoMoRPH](https://forum.cpcwiki.eu/user_avatar/forum.cpcwiki.eu/xenomorph/32/28_2.png) [@XeNoMoRPH](https://forum.cpcwiki.eu/u/XeNoMoRPH)\ **Post date:** [October 2, 2026, 4:29am UTC](https://forum.cpcwiki.eu/t/cpc-plus-128-kb-ram-prototype/468/18 "2026-10-02T04:29:39Z")
> [@cpcitor](#): > > @XeNoMoRPH I appreciate that you post a lot of interesting information from other sources. > It would be even better if you always included context and external links to the original material, not just a video and quoted text. I hope that, bit by bit, all the users from the previous forum will register here, including the author of this fantastic engine. The original source was a Facebook post; the author, [Golem13], posts it across various Facebook groups. Best regards!!! ---
**Author:** ![kawickboy](https://forum.cpcwiki.eu/letter_avatar_proxy/v4/letter/k/dc4da7/32.png) [@kawickboy](https://forum.cpcwiki.eu/u/kawickboy)\ **Post date:** [October 8, 2026, 12:03pm UTC](https://forum.cpcwiki.eu/t/cpc-plus-128-kb-ram-prototype/468/19 "2026-10-08T12:03:44Z")
This looks really promising. Just to have something other than GP500 2 and Lotus, is a 2-player split-screen mode a possibility? And how about a link system via the expansion port or cartridge port, similar to Lotus 2, which can be played by connecting 2 Amigas or Atari STs? ---
**Author:** ![scorp6128](https://forum.cpcwiki.eu/user_avatar/forum.cpcwiki.eu/scorp6128/32/367_2.png) [@scorp6128](https://forum.cpcwiki.eu/u/scorp6128)\ **Post date:** [October 12, 2026, 7:35am UTC](https://forum.cpcwiki.eu/t/cpc-plus-128-kb-ram-prototype/468/20 "2026-10-12T07:35:09Z")
I’m really impressed. 😀 Hope this project keeps going until we can finally enjoy the finished game. [Next page](https://forum.cpcwiki.eu/t/cpc-plus-128-kb-ram-prototype/468.md?page=2)