Environment

DOOM in your browser#

This page runs DOOM in a Linux machine inside your browser tab. The machine is compiled to WebAssembly (wmd-web) and starts from the Docker image wmn-doom: Debian with crispy-doom, the DOOM shareware episode, a VNC server and noVNC. Nothing runs on a server. The game draws into the VNC server in the machine. noVNC, framed on this page, shows it and sends it your keys.

1. Start the game#

Press Run. The first run starts the machine, then the game, the VNC server and noVNC (on port 8080 in the machine). The block waits until noVNC answers. The game then shows in the port 8080 card under the block.

#doomsh (POSIX)

start-doom
ready=no
for i in $(seq 1 240); do
  if python3 -c "import urllib.request; urllib.request.urlopen('http://127.0.0.1:8080/', timeout=2)" 2>/dev/null; then ready=yes; break; fi
  sleep 0.5
done
if [ "$ready" = yes ]; then echo "DOOM is ready: click the game below to play"; else echo "noVNC did not answer; the logs:"; tail -n 20 /tmp/doom-*.log; false; fi

2. Play#

Click the game to give it your keys.

Arrow keys: move and turn
Ctrl: fire
Space: open doors and press switches
Enter and Esc: the menus (Esc opens the menu, Enter picks)
1 to 7: change weapon

Sound is off: the machine has no sound card. The VNC server has no password: it listens only inside the machine, and nothing outside your tab can reach it. When you close the tab, the machine and the game are gone.