Resident Evil 4 has been remade, in the Doom engine
Capcom's horror game has been given the 2D side-scrolling treatment.
There are few games ever that have been praised, remastered, remade and released in more editions and versions than Capcom's Resident Evil 4, and there seems to be no real limit to what it can be or how far it can be taken.
The latest version is a two-dimensional, side-scrolling Resident Evil 4 developed by modder DooMero and using the free engine behind id Software's old, original Doom (which is open source). Very fun.