doom
Classic Doom is somewhat famous for running on assorted devices that aren't intended to play games, such as printers and smart fridges.
How many different devices has the game been demonstrated to run on? To clarify, I am not asking for every device model—I'm not interested in knowing about which printers it's been run on; just the fact that it has been played on a printer is enough.
I've done it. It took a ton of memorization and preparation to do. Here are some tips.
Ultimately, this is one of those feats that will take practice and a lot of failure before you'll be able to achieve it. It took me about 7 months of practice before I managed it, but it felt oh so sweet after I got through the first and second Episodes. I still haven't beaten Episode 3: Inferno, on Nightmare.
To find the Doom level, you will need to travel to Gearhead Vault, within Subway Town. Once you're able to access this level;
Here is a youtube video detailing how to find this hidden room:
Finding this secret level will also allow you to find the Doom Marine bobblehead item:
Best Answer
There is a wide range of devices which have had Doom specifically ported.
An issue with definitively saying what it has been ported to is that it has been ported to several programming languages which can run across many devices. It has been ported to the Android Operating System, which opens up many "smart" devices. The port to HTML5 allows it to be run on any device with access to a reasonable web browser. The port to Java opens up even more devices (more on this at the end).
From wikipedia Official Versions of Doom, and expanding with List of Doom Source Ports.
As mentioned earlier, a Java Port is particularly problematic for a comprehensive list.
From the old Learn About Java Technology page