I pushed the dual playfield a bit further: 256+256 colors, plus 8-bit alpha per color component value, plus 2-bit alpha channel.

https://www.youtube.com/watch?v=aHwE41IWmQ4

LAYERS

Common:
 * PTDQ system
 * RGBWa color model
 * 320x256 visible dots
 * interleaved bitplanes
 * horizontal and vertical scrolling

Background:
 * 336x336 dots
 * maximum 256 colors

Foreground:
 * 672x576 dots
 * maximum 256 colors
 * 8-bit alpha per color component
 * 2-bit alpha per pixel

NOTES

* Both the layers reside in CHIP RAM.
* The layers use 8 bitplanes in all.
* The foreground mode is changed by writing a whole 24-bit palette to the COLORxx registers with the CPU during the vertical blanking. The required palettes are pre-calculated at startup.
* The CPU is idle most of the time. The Copper is idle most of time (but if the staggered lines are on, it performs a wait and a write for each visible rasterline). The Blitter is idle.
* YouTube's encoding degraded the quality.

New demo available at https://retream.itch.io/ptdq as usual.

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Hello KS,
  I would like to take you up on that last one... If it's still available.  I'll PM you my address

Thanks in advance
Scott P 

Thank You

Afternoon.
Has anyone manaed to install roguecraftdx on the a600gs if so what settings  chomping at the bit to play but alas it keeps failing to load