To be clear. This is not an actual Doom game, just picked some sprites from it (and simplified a lot). The rendering engine is more like a Wolfeistein 3D. The Doom idea came because I started this ...

Just experimenting with an Arduino Nano I bought some time ago. This chip is very limited in process and memory: 16Mhz, only 32kb for program memory and 2kb of RAM, of which 1kb is entirely used for ...

In fact, if you’ve got a 3D-printer, it can be remarkably straightforward, as [Maker 101] demonstrates. The build relies on an Arduino Uno as the brains.