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Alien Arena: Warriors Of Mars

Alien Arena: Warriors Of Mars

Alien Arena is a furious frag fest with arenas ranging from the small, to the massive. With game modes such as Capture The Flag and Tactical, there are terrific team-based experiences to be had as well as 1v1 duels, free-for-all, and dozens of mutators to alter the game play to your liking.

Released Nov 3, 2017 Developer COR Entertainment, LLC Platforms Windows · Linux Arena ShooterActionIndieGoreViolent
View on Steam ↗ Free (US · as of 2026-05-14)

What players say

Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-27.

77.4%positive195 reviews
Recommended · 5 found this helpful

“peanut would love some pets and treats :) 🌸＞ フ | _ _ l ／` ミ＿xノ / | / ヽ ﾉ │ | | | ／￣| | | | | (￣ヽ＿_ヽ_)__) ＼二つ”

— a player, Steam review · 67 hrs played
Recommended · 2 found this helpful

“Alien Arena: Warriors of Mars, developed and published by COR Entertainment, LLC, is a fast-paced arena shooter that deliberately leans into the DNA of classic FPS titles rather than chasing modern trends. It draws clear inspiration from the golden age of competitive shooters,…”

— a player, Steam review · 11 hrs played
Not recommended · 0 found this helpful

“amazing game . But for 2026 standard i wouldn't play it as my main or side games maybe like an occasional game to play, even then i would have so many other free shooter game options.”

— a player, Steam review · 4 hrs played
Read more reviews ↗

Achievement stats

Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-09-28.

48achievements
8.8%median completion
8.3%rarest: 10000 Games Played
26.6% of players 19.7% of players 17.5% of players 14.4% of players 13.7% of players 12.9% of players 12.6% of players 11.9% of players 10.1% of players 9.8% of players 9.6% of players 9.6% of players 9.5% of players 9.3% of players 9.3% of players 9.1% of players 9.1% of players 9.1% of players 9.1% of players 9.0% of players 8.9% of players 8.9% of players 8.8% of players 8.8% of players 8.8% of players 8.7% of players 8.6% of players 8.6% of players 8.6% of players 8.6% of players 8.6% of players 8.5% of players 8.5% of players 8.5% of players 8.5% of players 8.5% of players 8.5% of players 8.5% of players 8.5% of players 8.5% of players 8.5% of players 8.4% of players 8.4% of players 8.4% of players 8.4% of players 8.4% of players 8.4% of players 8.3% of players 26.6% 0% most earned rarest
Almost everyone has
26.6%Kill Streak — Player had a kill streak
19.7%Rampage — Player had a rampage
17.5%Winner — Player Won A Deathmatch Game
Rarest badges of honor
8.3%10000 Games Played — Player has played 10000 games
8.4%50 Godlikes — Player has 50 godlikes
8.4%50 Enemy Base Units Destroyed — Player has destroyed 50 base units

Latest official news

Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.

Jun 21, 2026
John Diamond Memorial Tournament 2026 - Results

We had a blast, with twenty players, old players returned, that took along some new players. Total chaos in three different modes but on very smooth servers! We will definitely do this every year. htt

Jun 14, 2026
Alien Arena 7.72

Changes in 7.72: 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 greatl

Jun 06, 2026
John Diamond Memorial Tournament

On Saturday the 20th of June, 2026, at 20:00 UTC we will have a special tournament to commemorate the creator of Alien Arena: John Diamond. Everyone is welcome to join. Register here: https://form.jot

Apr 09, 2026
Project 100

Is Alien Arena still being developed? Yes, it certainly is: introducing Project 100, supporting the smoothest Alien Arena gameplay experience yet! The game engine and net code have had many improvemen

Jan 20, 2025
Alien Arena 7.71.7 Linux update

This applies to Linux only. This release contains the following changes: Automatic and ultra-fast installation of map packs before loading a map (by default enabled) Fixed bug that could cause crashes

Games like Alien Arena: Warriors Of Mars

From our knowledge graph — ranked by shared traits, not a black box. Each card says why it's here.

Quake 4 Quake 4 85.1% · 2,070 reviews shares Arena Shooter, Aliens, Gore, Violent Serious Sam 4 Serious Sam 4 82.1% · 5,787 reviews shares Arena Shooter, Gore, Violent, FPS Serious Sam Fusion 2017 (beta) Serious Sam Fusion 2017 (beta) 91.9% · 2,113 reviews shares Arena Shooter, Gore, Violent, FPS Prodeus Prodeus 92.1% · 5,822 reviews shares Arena Shooter, Gore, Violent, FPS Turbo Overkill Turbo Overkill 94.7% · 5,076 reviews shares Arena Shooter, Gore, Violent, FPS Shrine II Shrine II 92.8% · 584 reviews shares Arena Shooter, Gore, Violent, FPS Warhammer 40,000: Boltgun Warhammer 40,000: Boltgun 90.1% · 12,434 reviews shares Arena Shooter, Gore, Violent, FPS Space Beast Terror Fright Space Beast Terror Fright 91.6% · 1,586 reviews shares Aliens, Gore, Violent, FPS

Screenshots

Official Steam store screenshots — click any shot to enlarge.

Facts & details

From the Steam store record, snapshot 2026-09-27.

GenresAction, Indie
Player tagsArena Shooter · Action · Indie · Gore · Violent · First-Person · Shooter · FPS · Multiplayer · Aliens (SteamSpy community voting)
FeaturesSingle-player · Multi-player · PvP · Online PvP · Co-op · Online Co-op · Cross-Platform Multiplayer · Steam Achievements
LanguagesEnglish * *
Achievements48
Official sitehttps://www.alienarena.org
Minimum system requirements (PC)

Minimum: OS *: Windows 7 or higher Processor: 2.8ghz Memory: 4 GB RAM Graphics: OpenGL compatible Network: Broadband Internet connection Storage: 2 GB available space