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Fortified

Fortified

Fortified is an explosive strategy shooter where players will defend the Earth against a menacing Martian invasion in the 1950s. Play as one-of-four pulp inspired heroes as they fight swarms of terrifying robots with an arsenal of Cold War era weapons and experimental technology.

Released Feb 3, 2016 Developer Siege Camp Platforms Windows ActionTower DefenseIndieCo-opStrategy
View on Steam ↗ $14.99 (US · as of 2026-07-26)

What players say

Steam review score and the most-helpful voices, which may include critical ones. Data as of 2026-05-20.

74.6%positive1,710 reviews
Recommended · 14 found this helpful

“fun at first, gets repetitive fast Fortified is basically setting up turrets, holding waves, then jumping in to shoot aliens yourself, all with that cheesy 50s sci-fi vibe. It’s pretty fun early on, especially in co-op, but once you’ve seen a few missions, it starts to feel…”

— a player, Steam review · 262 hrs played
Recommended · 0 found this helpful

“Fortified feels like someone watched every cheesy 1950s alien invasion movie imaginable and then decided to turn it into a co-op tower defense shooter. Honestly? That alone already gives it more personality than a lot of games in the genre. The first thing that grabbed me was…”

— a player, Steam review · 23 hrs played
Not recommended · 0 found this helpful

“meh”

— a player, Steam review · 0 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 2026-07-25.

23achievements
8.0%median completion
7.3%rarest: Cloud Nine
13.5% of players 13.0% of players 11.9% of players 11.2% of players 11.0% of players 9.8% of players 9.2% of players 8.9% of players 8.5% of players 8.3% of players 8.2% of players 8.0% of players 7.9% of players 7.7% of players 7.6% of players 7.5% of players 7.5% of players 7.4% of players 7.4% of players 7.3% of players 7.3% of players 7.3% of players 7.3% of players 13.5% 0% most earned rarest
Almost everyone has
13.5%Ivy Leaguer — Complete a map other than Easy Street without the base taking damage
13.0%Goose It! — Destroy an Annihilator before it deploys
11.9%Big Spender — Spend more than $7,500 in any map other than Easy Street
Rarest badges of honor
7.3%Cloud Nine — Survive to wave 20 in Invasion mode on hard
7.3%Fortified! — Complete all maps on insane
7.3%Earth's Protector — Complete every map on hard

Price tracking

US-region pricing (USD), sampled twice daily by our own tracker since 2026-07-25. Steam prices vary by region — always confirm your local price on Steam.

$14.99current · sampled 2026-07-26 08:39 UTC
$14.99lowest since tracking began2026-07-25
US14.99 USD
EU14.99 EUR
UK10.99 GBP
Australia21.50 AUD
Canada16.99 CAD
Japan1,480 JPY
Brazil27.99 BRL
China48.00 CNY

Regional prices at last sample, in local currency — Steam sets each region's price independently.

Brazil≈$5.5 China Japan Canada UK US Australia EU≈$17

Cheapest → most expensive, converted to USD at ECB reference rates (2026-07-24). Relative comparison only.

Latest official news

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

Apr 25, 2016
Fortified 1.1 patch is live AND get 30% off this week!

Fortified 1.1 patch is now live AND get 30% off this week! https://s3.amazonaws.com/fortifiedgame/steam/newspost_1_1.jpg This just in! An unidentified Martian craft has crash-landed in the city, resul

Apr 25, 2016
Fortified 1.1 patch is live AND get 30% off this week!

Fortified 1.1 patch is now live AND get 30% off this week! https://s3.amazonaws.com/fortifiedgame/steam/newspost_1_1.jpg This just in! An unidentified Martian craft has crash-landed in the city, resul

Feb 26, 2016
Fortified 1.0.5.0 patch is now live!

https://s3.amazonaws.com/fortifiedgame/steam/newspost_small.jpg Changes: Added server browser for finding public games (replaces old 'Find Game' functionality) Support for 'Windowed Fullscreen' graphi

Feb 26, 2016
Fortified 1.0.5.0 patch is now live!

https://s3.amazonaws.com/fortifiedgame/steam/newspost_small.jpg Changes: Added server browser for finding public games (replaces old 'Find Game' functionality) Support for 'Windowed Fullscreen' graphi

Feb 11, 2016
Fortified 1.0.4.0 patch is now live!

https://s3.amazonaws.com/fortifiedgame/steam/newspost_small.jpg Changes: Text chat during multiplayer (Beta feature) Option for turning off motion blur Support for kicking players during a game Suppor

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Screenshots

Official Steam store screenshots — click any shot to enlarge.

Facts & details

From the Steam store record, snapshot 2026-05-20.

GenresAction, Indie, Strategy
Player tagsAction · Tower Defense · Indie · Co-op · Strategy · Multiplayer · Third-Person Shooter · Aliens · Sci-fi · Shooter · Online Co-Op · Third Person (SteamSpy community voting)
FeaturesSingle-player · Multi-player · Co-op · Steam Achievements · Full controller support · Steam Trading Cards · Steam Cloud · Remote Play on TV
LanguagesEnglish * *
ControllerFull support
Achievements23
Estimated owners1,000,000 – 2,000,000 (SteamSpy)
Official sitehttp://www.fortifiedgame.com
Minimum system requirements (PC)

Minimum: OS *: Windows 7 or higher Processor: Dual-Core 64-bit Intel or AMD processor, 2.0 GHZ CPU Memory: 4 GB RAM Graphics: 1 GB DirectX 10 compatible video card DirectX: Version 10 Storage: 4 GB available space