Kids Domain has a large index of freeware sorted by subject. There should be plenty here for rainy days. Kids Freeware is another page with much to choose from. Participants of the “alt.comp.freeware” newsgroup have also put together an extensive Kids Freeware page.
We see (and get) requests for free games from time to time. Here are some links:
AXCEL216/MDGx has a free games listing along with some games and cheats links…
Caiman features 2671 unique games (at the time of this posting) with no adware, spyware, demos, shareware or trials…
The Independent Gaming blog features twenty of the best freeware adventure games released in 2006…
Rockstar Classics has a free downloads series…
Windows Marketplace has a plethora of free game downloads!
And finally, here’s a website where you can play classic arcade games (Donkey Kong, Galaga, and more!) online for free.