I had it bookmarked, but completely forgotten. Many thanks! Will definitely look into this with our son.
EDIT: wow, this seems perfect for us. A Pico-8 clone in BASIC, essentially. Even simpler.
From the manual: "LowRes NX is based on second-generation, structured BASIC. It offers all the classic commands, but with labels, loops and subprograms instead of line numbers."
Does this mean that it supports all of QBASIC? So after finishing the QB tutorial linked in this thread, we can switch over to LowRes NX with no additional learning curve needed? (This would get rid of the DOSBox layer, making the learning and exploring experience maybe more straightforward for a child.)
I'm no oldschool BASIC specs expert, hence the question.
The main difference is that LowResNX simulate a fantasy GPU chip, that only support sprite and background layers are where all the pixel source are restricted to square of 8x8 pixels, similar to NES or GBA.
Have fun.