Finding that an Atari ST emulator exists and runs all the old software without fault has given me a great deal of enjoyment. If you ever had an Atari then get Steem, all of the automation and medway boys disks are available to download.
I have been able to complete a good few games that I never managed to as a kid. Defender Of the Crown for example. You couldn’t save your game. With the emulator you can save the memory at any time and reload. Steem also runs on any crappy laptop.