Dooom is a Doom port for the Dingoo Native OS by the_wub, which itself is based mainly on the Chocolate Doom source port by Simon Howard.

Release notes:

Version 1.2 is only different by one line of code […] It changes how the save game folder is created and now does this using the name of the .wad or .txt file used to launch the game. This means you get a full amount of save slots for each game and don’t have to share with the underlying wad.