What about the CD-rom game from Singapore we had with the boy and his dying frog? Kinda harsh for little kids. That may be mild for most people but my kids were sensitive and wouldn't play it anymore because it was sad.
I feel bad that I put a dark shade on Singapore math curriculum. Had no idea that homeschool paradise will give a certain name curriculum to somesthing they created by thenselves? Hm. Sorry.
A lot of websites will take a certain curriculum and create supplemental materials. It's nice to be able to look up "Singapore, 3rd grade, unit 2" and find materials that are exactly what you are working on.