Play Doom (also Hexen and Heretic) using Doomsday 1.9 beta-4

Installing Doomsday

1. Verify the following lines are in your /etc/apt/sources.list
deb edgy-backports main restricted universe multiverse
deb edgy-updates main restricted universe multiverse
deb edgy-security main restricted universe multiverse

2. Install the Doomsday dependencies and the shareware Doom wad
sudo apt-get install doom-wad-shareware libsdl-sound1.2 libsdl-net1.2 libsdl-mixer1.2 timidity

3. Add the following NEW repos to your /etc/apt/sources.list
deb edgy main restricted universe multiverse
deb-src edgy main restricted universe multiverse
(or for Debian)
deb sarge main contrib non-free
deb-src sarge main contrib non-free

4. Add the archive key to apt's trusted keyring, and update your source
gpg --keyserver --recv-keys 0x4B6E7209
gpg --export -a 0x4B6E7209 > Yagisan.asc
sudo apt-key add Yagisan.asc
sudo apt-get update

5. Install the Doomsday engine
sudo apt-get install deng

6. Create a startup script for Doomsday
mkdir ~/.doomsday && cd ~/.doomsday
Open your favorite text editor and paste in this code
doomsday -g jdoom -file /usr/share/games/doom/doom1.wad
Save it as 'doom' and make it executable
chmod +x doom

5. Start Doomsday by executing the script

Installing the Hi-Res Models (Optional)

The following jDoom major jPacks are available
deng-jdoom-rp-core              (core files)
deng-jdoom-rp-decorations       (decorations)
deng-jdoom-rp-effects special   (effects)
deng-jdoom-rp-hud               (heads up display)
deng-jdoom-rp-items             (items)
deng-jdoom-rp-monsters          (monsters)
deng-jdoom-rp-projectiles       (projectiles)
deng-jdoom-ep                   (The jDoom Environment Pack)
deng-jdoom-ui                   (The jDoom User Interface Pack)
deng-jdoom-tp                   (The jDoom Texture Pack)
deng-jdoom-sycraftsdoommusic    (High Quality Doom Soundtracks)

Using apt-get, install any of the packs you desire.