Doom 2D is an old Russian Doom fangame, originally made for DOS in 1996 by Prikol Software.

It was ported to SDL in 2011 by Rembo. This is a port of that SDL port to Nintendo 3DS/libctru.

You should have the latest devkitARM and libctru installed and in your PATH.

make builds ctrd2d.elf and ctrd2d.3dsx.

make cia builds ctrd2d.cia.

If you have a way to install CIAs, build and install the CIA. If you only have the Homebrew Launcher, build the 3DSX and copy it to sdmc:/3ds/.

Then, copy the gamedata/ctrd2d folder to sdmc:/3ds/.

If you've installed the CIA, just launch the title; if you're using HBL, run it and Doom 2D should be in the menu.

Default controls:

• D-Pad: movement/aiming
• A: jump
• B: shoot
• Y: use
• START: menu
• L/R: change weapon; Y/N in menu prompts

If it crashes for whatever reason, it should freeze for a few seconds, allowing you to read the console.

• Music
• Some way to specify command line args or a config menu
• Faster graphics (should probably write a hardware renderer or something)
• NDSP sound (apparently CSND is deprecated?)
• Better timing/FPS cap
• Strafe button