Assuming that the Steam release has not been updated, there is no native support for newer widescreen resolutions. There is however a set of fan-made patches for this, and some of the other Impressions Games series. Patches for both Zeus & Poseidon are available from the Widescreen Gaming Forum. To use the patch, replace the default Zeus.exe in the game directory, and the images in the Data.
PCGAME FIXESZeusfor related No-CD & No-DVD PatchNo-CD & No-DVD Patch troubleshooting: The most common problem gettinga No-CD/No-DVD patch to work is ensuring that the No-CD/No-DVDpatch matches you're game version, because the games exe ischanged when a patch update is applied previous versions won'twork.If its an older game you areplaying and you are running Windows 7 or Windows 8 it may not work,if you right click the.exe file and choose Properties andthen Compatibility you can change this to run in Windows 98/Windows 2000 etc. You can find more information on the BeginnersHelp page.