My grandfather has always really enjoyed RTS and puzzle games. When I was younger, we would play games together on his old Dell desktop, and when that desktop died a few years ago I gave him my old HP laptop. At first I was able to find some Steam games he might like and install them, but because he does not have internet at his house I had to sort of stasis-rig Steam with verification and go into offline mode so he could take it home. The problem as of late is that it will no longer connect the internet or WiFi, which is unsurprising since the laptop is over a decade old now. That means that any time the laptop forces a shutdown or runs out of power I have to bring it over to my house, re-set it up, and send it back, still running, and make sure he plugs it in before it dies because the battery only lasts about 30 minutes lol.
I have been able to somewhat explain to my grandfather what the problems are, and that fiscally it isn't worth fixing or trying to find parts for at this point. He asked why he can't install games that do not connect to Steam, and I explained that it is hard to find the types of games he likes now that are compatible with the older OS and don't have to install via some kind of internet connection. Lo and behold, he goes and pulls out a box of about a dozen discs for most of the old games he loved to play. I have tried to install them, both on the HP laptop (Windows 7) as well as testing them on my husband's newer laptop (Windows 10), but they aren't compatible and won't actually run once installed. Is there any way I can convince these old games to function on newer machines? His old desktop used Windows XP. I tried finding some of the games for free online, but it's very difficult to find such old games that are legal to download and don't need to constantly verify ownership via internet connection.
I know most of the old games he enjoys, like Age of Empires and Caesar 3, are available on Steam, so if there is a different way of making that work please let me know. I'm currently also looking into getting him a new basic laptop for ~$200-300 USD that has a big enough screen for his old eyes, which would fix the internet problem (sort of) but still won't allow him to play the old games. If anyone has any alternative suggestions, such as game launchers that let you purchase or download games through the internet but do not require secondary verification in the same way Steam does, please let me know.