Abandonware DOS title
download 2180 DOS and Windows abandonware games

That DOS game runs too slow / too fast, how can I speed it up / down?

The cause for a game to run too fast or too slow in DOSbox is probably the CPU cycles. If you are using D-Fend Reloaded, you can easily change the CPU cycles in the game profile.

You can also change CPU cycles while the game is running by pressing CTRL+F11 to reduce the amount of cycles (making the game run slower) or by pressing CTRL+F12 to raise the CPU cycles (making the game run faster).

There are also a number of applications that help slow down old software that runs too fast on modern computers. One of the most popular is Mo'Slo.

Back to Abandonware DOS FAQs
This website uses cookies to ensure we give you the best browsing experience. This includes cookies from third party websites. If you want to know more or if you wish to change cookie settings, please click here. If you continue browsing our website you're giving your consent to receive all cookies on this website and from third parties.