vico wrote on Today, 03:35:

Is there any way to slow down the game internally without using third-party slowdown tools?

In most cases, no. In fact, it is uncommon to have a game even acknowledge speed sensitivity at all like this game apparently does with the F9 key.

I haven't heard of the game before today, but looking it up just now I see that it is from 1992 and requires only a 286 processor. A Pentium II 300Mhz with caches enabled is probably a hundred times faster than what the game was built for. If it is speed sensitive (which it seems to be), you will almost certainly need to slow down the system to make the game run properly. Disabling L1 or L1+L2 caches is probably your best bet, though it doesn't give you much flexibility if it is still too fast, or ends up being too slow.

I don't have much experience with this, but I think setmul and CpuSpd allow you to do this without having to mess with the BIOS every time. I'm not sure which is better for your needs.

Using SetMul the game runs too slowly; it's not an option.
I've gotten better results with CpuSpd, but for some reason, when I run it, I hear a slight buzzing sound coming from the sound card.

What happens if you try CpuSpd with a 50% throttle, for example "cpuspd t8"? I found that using the highest throttle options can cause sound problems with VIA chipsets, so you have to start with a faster setting and keep going down until the sound starts glitching.

Can you also try pressing F9 several times? I just tested it in 86box, it actually works for me to slow down the game. It seems to get progressively slower each time you press F9.

Even with CPUSPD t15, I hear the slight buzzing.

I've tried pressing F9 and F10 in-game several times, but they have no effect. I assume my processor's 300MHz isn't compatible with this game feature.

"moslo /25 clyde1.exe" is giving me better control, though I'm not sure if I'm playing the game at the ideal speed.

vico wrote on Today, 14:44:

Even with CPUSPD t15, I hear the slight buzzing.

I've tried pressing F9 and F10 in-game several times, but they have no effect. I assume my processor's 300MHz isn't compatible with this game feature.

"moslo /25 clyde1.exe" is giving me better control, though I'm not sure if I'm playing the game at the ideal speed.

I would compare it to a video of someone playing the game.

https://www.youtube.com/watch?v=2NJryTTrv8A&t=290s

That looks right to me. There are some others on youtube where everything seems too fast and all the audio is faster and higher pitch.

I just tried it on my K6-2, clocked at 200 MHz and the Cpuspd throttle set to 1/8, corresponding to a speed of 25 MHz. It was still way too fast, but after hitting F9 a ton (around 130 times) it almost approached playable speed. But here's the problem: Once you've hit F9 around 150 times or so, it will wrap around to the fastest possible speed again, so there's no way to go any lower. What's nice is that the game will save your speed setting between restarts. It seems that the only way to run this game on a 1998 machine is to use an additional slowdown tool.