Alien Arena

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We usually play CTF on the AAOCS server between 19:00 UTC and 23:00 UTC
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News

Alien Arena 7.72 available on Flathub

  • Project 100: optimized the game to support at least 100 FPS framerate, 100 FPS server tickrate, 100 PPS packet rate, and mouse polling rate that aligns with the framerate, this greatly improves the smoothness and responsiveness of the game
  • Extended single player mode with more game modes: CTF and Tactical, and weapon modes: Insta and Insta/Rockets
  • Added fairer antilag calculation based on one-way ping with server-side configuration options and diminishing effect on very high pings
  • Optimized mouse movement logic (this is under cvar m_direct, recommended to set m_direct to 1)
  • Added centered message about who killed you
  • Drop old particles if the particle buffer is full
  • Check ragdoll buffer before creating new ragdolls
  • Fixed bug with crashing clients when lots of rockets were fired
  • Fixed bug with duplicate ragdolls
  • Fixed bug with ragdolls hanging in mid air
  • Fixed bug with disappearing flag in CTF mode when people quit the match or disconnected
  • Added command teamselect to the list of available commands

Debian 13

Debian 13 - Trixie just got released, which includes Alien Arena 7.71.7!

John Diamond

The Alien Arena community is deeply saddened to share the news that the founding father of Alien Arena has passed away on June 15, 2025. We wish lots of strength to his loved ones that he left behind.

Obituary of John Diamond

Steam on Linux

Alien Arena 7.71.7 for Linux has been finally released on Steam.

New release 7.71.7

  • Automatic and ultra-fast installation of map packs before loading a map (by default enabled)
  • Fixed bug that could cause crashes in single player mode
  • Added Discord button in the main menu to easily join the Discord server
  • Fixed a map difference error bug after reinstalling a map
  • Added possibility to change the sky in a map without causing map difference errors
  • Removed the sponsor banner
  • Increased default time that messages appear in the screen to 6 seconds and can be changed and remembered now

Steam

Alien Arena 7.71.7 for Windows has been released on Steam.

Alien Arena Installer

For Windows, there is a new installer to install the latest release directly from the source: Alien Arena Installer. This installer keeps the game up-to-date and can be used for launching the game as well.

Also the installer needs to be installed. When installing it, you might get warnings from Windows Defender that Windows protected your pc. In that case, click on "More info" and choose "Run anyway".

Upcoming event
John Diamond Memorial Tourney on 20th of June, 2026

The John Diamond Memorial Tourney will be held on June 20, 2026, in memory of the founding father of Alien Arena. Everone is welcome to join, we hope to have a big event with multiple rounds.

Flathub

Alien Arena has been installed more than 25K times from Flathub! The latest release on Flathub is 7.71.7.

New release 7.71.6

  • The server list has a filter now to show active servers only
  • It's easier to see the number of real players in the server list
  • The server list sorts on player count + ping by default
  • The antilag code got some optimizations
  • The player setup pops-up at more places
  • The newsfeed can show colors now apart from just yellow and white

New release 7.71.5

  • The player setup will handle classic player models better.
  • There is a new command to install classic player models: installmodel.

Classic player models and custom skins

Four classic player models with all their custom skins are available again: slashbot-classic, martiancyborg-classic, martianenforcer-classic and martianwarrior-classic. From release 7.71.5, you can install them with the console command installmodel. If you have 7.71.4, you can use installmap for that.

It's recommended to install all of them because you don't know which ones other players are using. Use installmodel classicmodelpack for that.

Itch.io

Alien Arena is now on itch.io!

New release 7.71.4

  • Release 7.71.4 has most game operations running on alienarena.org.
  • Automatic downloading of maps is using the http protocol again.
  • The old obsolete stats have been removed.
  • A new console command has been added to easily download and install new maps and/or map packs: installmap.

Debian and Ubuntu

Alien Arena 7.71.3 has been released on Debian 12 - Bookworm and Ubuntu 23.04 - Lunar Lobster.

New IRC server

For IRC, use irc.alienarena.org. The port should be 6697 for secure connections, otherwise 6667. With the latest game clients the IRC server will be changed automatically.

Most recent tourney

All tourney results   Rankings

How to install

Windows:

  • Install using the new Alien Arena Installer
  • Install from svn (icculus) or GitHub. You'll have the latest code (see below)
  • Install from Steam

Linux:

  • Install from Flathub
  • Install from Steam
  • Ubuntu 23.04 - Lunar Lobster or Debian 12 - Bookworm: 7.71.3 is available in the package repository
  • Install from svn (icculus) or GitHub. You'll have the latest code (see below)
Latest version number:

Known issues on releases before 7.71.7

Depending on the release you are using one or more of the following issues might occur:

  • You can't connect to any server
  • Downloading maps is very slow
  • The newsfeed is not working
  • Crashes in single player mode

SVN (icculus) and GitHub

The repository is located at: svn://svn.icculus.org/alienarena/trunk and https://github.com/alienarena/alienarena.
On Windows, if you want to download from svn on icculus, you can install TortoiseSVN and download the source code. The alienarena.exe is already there.
On Linux, install subversion. Then you need to build the application yourself.

For building on Linux, you need to install the following libraries first:

Execute the following command to download the source code from SVN on icculus into folder alienarena:

Execute the following command to download the source code from github into folder alienarena:

Then execute the following commands to build the executable:

If you have already done this before, use svn update or git pull to download the latest sources.
For windows, download the latest game client here.
To compile faster, you can specify the number of threads it uses: make -j 4.

Other configure options that are useful:
Dedicated server: ./configure --disable-client
With debug symbols: ./configure --enable-debug

Links

Help / Tools

Support
  • Discord
  • Matrix

  • IRC:
  • irc.alienarena.org:6697
  • irc.alienarena.org:6667

Classic models and skins

Easy installation with the console command installmodel.
Instructions for installing manually.

Install all: classicmodelpack.zip | installmodel classicmodelpack
slashbot
martiancyborg
martianenforcer
martianwarrior

Map packs and 3rd party maps

Easy installation with the console command installmap.
Instructions for installing manually.
Map pack 1
Map pack 2
Map pack 3
Map pack 4
Map pack 5
Map pack 6
Map pack 7
Map pack 8
Mega map pack (1-8)
ctf-titan
ctf-terminal-classic2
ctf-brownfield
ctf-curvy
ctf-exobiology
ctf-spacejam-classic
ctf-office
ctf-ahtcity
ctf-blockbattle
ctf-mines-of-hell
ctf-thepit
ctf-tribute
ctf-bsfortress
ctf-anxiety
ctf-facingworlds
ctf-radia
dm-badabum
dm-defence
dm-inferno
dm-leviathan-classic
dm-mothership
dm-nkitrn1
dm-tourney0
dm-undergroundlabs
dm-cavern
ctf-rockwar
ctf-eizo
ctf-rampage
ctf-atrix
ctf-oblivion
ctf-greeno
ctf-acchupta
ctf-icarus2
ctf-dualscourge
ctf-area51
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