Commander Keen IV was a very popular platformer for MS-DOS in the 1990s.

A port for AROS x64 (ABIv11) is now available:
https://arosarchives.os4depot.net/share/game/platform/keen4.x86_64-aros-v11.lha





Start
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Double-click the Commander_Keen_4 icon.

AHI Unit 0 must be configured for the available audio hardware.
If you use QEMU with an ES1370 device, select the SB128 HiFi 16-bit stereo mode.

Controls
--------
Cursor keys Move
Ctrl Jump
Alt Pogo stick
Space Neural Stunner
Esc Menu
F5 / F9 Quick save / quick load

The controls can be changed in the game menu.

Thanks for another port for AROS
FYI: The game crashes on AROS Hosted when you close the window with the mouse.

@retrofaza
Many thanks :-)
Closing the window doesn't cause a crash for me on Aros ONE / QEMU.

My main suspicion regarding the error you're seeing is an AROS-Hosted-specific AHI/ALSA/PipeWire race condition during shutdown.
Does this error also occur if you launch the game as follows - that is, with the additional "/NOAHI" flag?

No problems on VMware and AROS One 64-bit v11 either Keen 4 closes properly!

Yes, with the /NOAHI argument, there is no crash

Thanks to both of you for testing!
That narrows down the issue. It’s an ALSA problem that only occurs when hosted on Linux. Maybe I can find a way to work around it.

@retrofaza

Just to clarify: I assume other software using audion, like SDL games, work for you on hosted and don't produce crash, correct?

I phrased that somewhat clumsily.
I don't suspect the audio driver is faulty. It could be a timing or shutdown issue regarding how the game terminates its asynchronous AHI requests, and that this only manifests in combination with the AROS-Hosted/Linux audio path.
However, since I am still very new to AROS development, I might be completely on the wrong track.

Ok, thanks I got it now. In the past there were problems with ALSA over PipeWire so I also wanted to make sure these problems did not resurface again.

Yes, other games work