I think your wrong, Doom still has great gameplay. Have you loaded it up played lately? Doom got so many things right I couldn't list them all. I think the one thing that it has over all other FSP games made since, is its shear speed of gameplay coupled with precise absolute rock solid control. You say what was good once isn't dick now? You can't be serious. Speaking of Serious, Doom made now would be nothing like Serious Sam. Serious Sam took a few things from Doom and exaggerated it and didn't take pacing or level design in count. It is a much different game. If you can't tell that by playing, then oh well.