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Lix is a puzzle game inspired by Lemmings (DMA Design, 1991). Lix is free and open source.

Assign skills to guide the lix through over 700 singleplayer puzzles. Design your own levels with the included editor.

Attack and defend in real-time multiplayer for 2 to 8 players: Who can save the most lix?

Lix screenshot

Get Lix

Thanks to our awesome package maintainers!

License/Copying/Public Domain

Lix's code, graphic sets, sprites, levels, sound effects, and some music tracks (but not all music tracks) are released into the public domain via the CC0 public domain dedication.

The text font DejaVu Sans and some music tracks have their own licenses. Full license/copying text

Networked Multiplayer

Lix has competitive multiplayer: Route as many lix as possible into your exit, even if they're your opponents' lix.

The easiest way to play networked games is on our central server: From Lix's main menu, go to Network Game and check “Play on the central server”.

Alternatively, you can host private games independently from the central server. Check “Host a game yourself” in the Network Game menu, then tell your friends to connect to your machine via “Connect to somebody else”. To host, UDP port 22934 must be forwarded to your machine, or you can agree on a different UDP port with your players.

It's possible to run your own standalone server outside of Lix. To build this server program, $ cd src/server/, then $ dub build, switch back to Lix's base directory with $ cd ../../ and run the server with $ bin/lixserv. The server will listen on UDP port 22934; you can choose a different port by $ bin/lixserv --port=<number>.

Build Instructions

Instructions are in the directory ./doc/build/ or online:

Quick instructions: You need a D compiler, dub, Allegro 5.2, and enet 1.3. Build Lix with $ dub build -b release, then download the game music and extract it in Lix's directory.

Command-Line Switches

To play, run $ lix without switches.

To force a graphics mode, overriding what you've chosen in the options menu:

$ lix -w                     run windowed at 640x480
$ lix --resol=800x600        run windowed at the given resolution
$ lix --fullscreen           use software fullscreen mode (good Alt+Tab)
$ lix --hardfull=1600x900    use hardware fullscreen at given resolution
$ lix --help                 list all supported switches (there are more)

There are more switches. Read the command-line switch reference in .doc/cmdargs.txt.

Level designers may be interested in batch replay verification in ./doc/levmaint.txt.