I see comments over and over complaining about games that don't work under Vista (and now 7). Most of the complaints refer to the games offered here. I have a few observations to make.
1) I have had Vista for over 2.5 years. In that time, over 95% of the games I had before worked with no trouble. A few need DOSBox (now that I have that), a few need a compatibility mode and a few need to run as administrator. VERY few were actually lost.
2) Just about all games that are developed now ARE designed to run with Vista (and now 7).
3) Everybody's system is configured differently. Even if two people got IDENTICAL systems at the same time, within a few weeks, they would be different (if not sooner). Settings for various software as well as levels of the software and even hardware drivers will affect what works and doesn't work in any given way. There are very few games offered here that universally fail for any given operating system. Most work for some but not for others.
4) I mentioned that new games are compatible with Visa and 7. That being said, we cannot expect NEW games for free. Except in rare cases like TellTale (and those games don't work right for me), new games are NOT free. We cannot expect the majority of the games offered here or elsewhere for free to be Vista compatibility. Most are simply too old.
Conclusion - Any game you find may require a bit of work to get to run and even may require working with the developer. However, there is a very very good chance that it will work. No guarantee, but a very good probability.
Now, having said all this - the games we are being offered are free. Accept and work with what we have and quit griping!
Just as a final note - I was one of the lucky ones. Today's game, Trick Ball, worked like a charm from the starting gate. No compatibility settings or changes at all. I just have to move the shortcut group it made (it didn't ask me where to put it).