When I switch to the higher resoution in Dungeon Keeper the FPS suffer from a heavy drop (runs at 10-20 frames as far as I can tell). Is there anything I can do about that?

OS: Win 7 Professional 64 Bit SP1
CPU: Intel Core2Duo T6600 (@ 2,2 Ghz)
RAM: 4,0 GB (DDR2)
Graphics: ATI Mobility Radeon 4570
Got all the latest drivers installed.

Yes.

You can Press Ctrl+F12 in-game to increase DosBox cycles (Ctrl+F11 decreases them). However, a better solution in my opinion is to open up dosboxDK.conf (in your DK GoG folder) and change the 'cycles' value from '80000' to 'max'. Now when you boot up the game, it will run at the same speed as the lower resolution.

Thanks, but it didn't really help. Gameplay & sound got very choppy with cycles set to max. Also, the FPS still don't semm to be well.

This is really bizarre. It sounds like your computer is struggling... but my laptop has much lower specs and isn't slowing down on the higher res. Have you checked the process tab in task manager to see if anything else is eating up your resources?

I'm also having some serious perforamance issues, during larger battles the framerate drops to 10fps...

My specs:
AMD64X2 6000+
2 gigs RAM
Geforce GTX 260

Any help would be appreciated.

The original game had this issue. During intense battles, and especially if that wind spell (I think it's called Tempest) is used (where it blows all creatures to one side), the game becomes a real lagfest. This is a shortcoming of the DK code, not the underlying hardware, which it nor I think DOSBox is really taking advantage of.

Good luck trying to cure it, if you do, I'd like to know how.

But even without battle, just while viewing a large dungeon it gets quite laggy, I thought that modern hardware should cure that problem, but looks like I have to live with the lagfest. Meh. ;/

"Modern hardware" as in C2D+

For more demanding games 640x480 and/or 1997+ DOS games then you'll need even faster processors. Core i7 or equivalent provides a significant boost for those.

I had low fps too when i Alt+R'ed to high resolution and this worked for me! THANKS! :)

If it helps someone, here's the important parts of my config, though i didn't change much else:

[sdl]

fullscreen=true
fulldouble=false
fullresolution=0x0
windowresolution=original
output=overlay
autolock=true
sensitivity=100
waitonerror=true
priority=higher,normal
mapperfile=mapper.txt
usescancodes=true

[render]

frameskip=0
aspect=false
scaler=none

[cpu]

core=auto
cputype=486_slow
cycles=max
cycleup=5000
cycledown=5000

I have the same problem as the OP. My hardware is:

OS: Win 7 Professional 64 Bit SP1
CPU: Intel Core2Duo T5750 (@ 2,0 Ghz)
RAM: 3,0 GB (DDR2)
Graphics: nVidia 8600M GT Unfortunately, this didn't really help much for me. If anything, FPS seems a bit more erratic after changing the 'cycles' value.
It might just be that a C2D is too slow to emulate these games well enough as I can definitely notice heavy processing being done by the CPU.

Tried running the game on my desktop now with similar results (same OS) -

C2D E6600 @ 3.0GHz
4 GB DDR2
ATI Radeon HD 5770

On this machine, DK uses almost no CPU time. Load on the GPU is also very limited, so clearly it's not because the PC isn't powerful enough to emulate it, far from...

I'm also suffering from bad FPS on bigger dungeons. I'm not on high res or anything either. That's even choppier. :(

Hi.

Changing the 'cycles' value from '80000' to 'max' worked.

Thanks Sie.

Does anyone know how to change the cycles value? I can't find the dosboxdk.conf file anywhere...!

Hi.

The Dosbox.config file can be found in the Dungeon Keeper folder itself, not in the Dosbox subfolder.