Hello there, I was able to resolve this today, so it's only fair to share my information.

The Divide Overflow Error relates to clock speeds, my fix was to use http://www.oldskool.org/pc/throttle/DOS/ and run the a flag, as it would run the CPU as if it was between a 386 and a 486 processor.

In regards to only being able to run PC Speaker, that is likely because the amount of available memory you have. I believe you need between 564kb to 580kb of Conventional Memory available. For that, I ended up using MEMMAKER which managed to me from 525k to around 603k free memory, more than enough to run even AdLib / SoundBlaster.

After following the above, you will finally be able to play the game. This should also work for the other games that Gremlin Interactive put out for DOS.

Lotus III runs fine on CPUs with less than 333MHz, otherwise you are required to patch the executable. Also find it's better to play it on pure DOS.

An easy solution is to downgrade the bus from 100MHz to 66MHz you will be able to play it without problems (4x66 = 266MHz).

ViTi95 wrote on 2022-11-03, 10:03:

Lotus III runs fine on CPUs with less than 333MHz, otherwise you are required to patch the executable. Also find it's better to play it on pure DOS.

An easy solution is to downgrade the bus from 100MHz to 66MHz you will be able to play it without problems (4x66 = 266MHz).

I was able to run the program without patching the executable, with the Throttle program, it managed to handle the speed issue only caveat is having to run it every time you restart the computer in DOS mode. This same setup also worked in other games like Desert Strike, Jungle Strike, Zool II and a few others that I tried, so as an alternative solution it might resolve some of those troublesome DOS issues on faster processors.