Commander X16

This is a space invaders inspired game. Use the mouse or joystick to control the player ship.
The shield segments can take 2 hits each. If enemies get too close you retreat back to the last level.
You lose when all your lives are gone or you fall back to earth level again.

INVADERZ.PRG works on actual hardware and requires emulator R44 or newer!

Try It Now!
(with the web emulator)

Download: Roadmap:

• more diverse enemy formations
• enemy attack raids over the sides
• power ups (shields, double cannon, disruptors etc.)
• boss enemy
• joystick controldone
• music done
• Different enemy sprites. done
• Sprite animations. done
• fade in/out of palettes and backgrounds. done
• more levels with more backgrounds (all planets of the solar system), done
• sound effects basics done
• title screen done

How to use with the emulator installed locally on your machine:

• Unpack ZIP file contents into the same directory as the emulator.
• Start the emulator, then enter
• LOAD"INVADERZ.PRG"
• RUN

V0.8: added "Try it now" button
V0.9: integrated zsound library, other stuff
V0.95:bugfixes for R44.

I'm using the latest emulator (v41) but running your game (using the zip you provided), it says:

"Unsupported Kernal version 41"

mwiedmann wrote: ↑Fri Jan 20, 2023 2:57 am I'm using the latest emulator (v41) but running your game (using the zip you provided), it says:

"Unsupported Kernal version 41"

Confirmed. Same behavior here.

I must have messed up the files. I'll check.

EDIT: ok, fixed. Somehow I linked to old file from the library.

Update Version 0.9:

• Uses ZSound library now - thanks a lot @ZeroByte. This is much more stable now than my own haphazard player... and better performance too, as mine was in written in C.
• Added a "speed" (aka "difficulty") gameplay option for low, medium and hard. I wonder who will make it to the end in hard ...
• Some bugfixes, too and more adaptations to R42.

Seems that it's better to leave a few invaderz scattered across different columns... otherwise enemy fire comes raining down from the last column or two making it quite tricky to get them all without being shot.

Sure... but at some point there is one last left - better have some shields remaining for cover

FYI, It has been reported that this game freezes while "Loading Assets" on the latest hardware.

It does work on the R43 emulator.

Yes, I still have to update my dev board to the latest stuff. Including the microcontroller, for which I haven't found a working programmer... and time to do it.

After loads of debugging I finally got it to work reliably on R44 emulator and hardware. Main issue was that emulator and hardware behaved differnt (mainly VERA video and PSG).
So - have fun!