melarkey: Is it me or does it run quite fast? i can't seem to slow it down my work gang is sprinting all over the place!
You can try two things:
1. In the Start Menu, find the Constructor's graphic setup utility [which actually sets a different mode in DosBOX], and see if it works slower on other modes, like Direct3D. Not sure this will help though.
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It's in GOG.com\Constructor
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2. The other method, which should work, is to lower the cycle count. Launch the game, press alt enter, to switch to the windowed more, and then lower the cycles with ctrl+F11 [hit ctrl+f12 to rise], You will note that the percentage value changes in the titlebar, Find the right value, and You're set!:D The bad news is that You'll probably have to do it each time You play. Good luck!:)