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MarZ: Tactical Base Defense

MarZ: Tactical Base Defense

Build your defense base to fight back the undead hordes of Mars and secure the future of the red planet. MarZ is a game of strategy and tactical defense where you must carefully manage your crew and resources as you try to uncover the terrible secrets of the undead.

Released Apr 4, 2019 Developer Giant Grey Platforms Windows StrategyTower DefenseRTSTacticalIndie
View on Steam ↗ $21.99 (US · as of 2026-09-25)

What players say

Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-02 · quoted reviews as of 2026-05-13.

77.8%positive889 reviews
Recommended · 0 found this helpful

“Is this the best tower defense game in existence? No. Is it a GOOD tower defense game that provides the right amount of entertainment for the price? Hell YES. There's exactly the right amount of complexity and challenge here to be a really entertaining foray into the genre. I…”

— a player, Steam review · 43 hrs played
Recommended · 0 found this helpful

“The game is pretty nice, i for one like to play it casually and i think it's playable for all skill levels. The biggest thing i hate about the game is that there's no BORDERLESS WINDOWED mode so i have to either play in a much smaller window if i want to be able to play music on…”

— a player, Steam review · 6 hrs played
Not recommended · 0 found this helpful

“A tower defense-style tactical game where players deploy and manage units to defend against waves of enemies across different maps. The core gameplay is enjoyable, with each map presenting slightly different tactical challenges and encouraging basic adaptation. Unit progression…”

— a player, Steam review · 5 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 2026-09-19.

35achievements
30.9%median completion
2.6%rarest: ALMIGHTY
91.4% of players 85.9% of players 84.6% of players 82.6% of players 77.1% of players 67.9% of players 62.7% of players 61.5% of players 54.9% of players 54.8% of players 48.7% of players 46.7% of players 45.7% of players 45.1% of players 43.3% of players 39.8% of players 37.9% of players 30.9% of players 30.7% of players 27.3% of players 27.0% of players 25.7% of players 20.2% of players 18.7% of players 15.4% of players 15.3% of players 10.4% of players 9.6% of players 9.4% of players 8.9% of players 6.1% of players 6.0% of players 5.8% of players 5.6% of players 2.6% of players 91.4% 0% most earned rarest
Almost everyone has
91.4%FIRST KILL — Kill 1 zombie
85.9%ALPHA LEADER — First special force
84.6%FIRST PERK — Earn 1 perk
Rarest badges of honor
2.6%ALMIGHTY — Unlock all achievements
5.6%PHOTOGRAPHER — Take a screenshot
5.8%TOWERS? WHICH TOWERS? — Win a mission without building a tower

Price tracking

US-region pricing (USD), sampled twice daily by our own tracker since 2026-08-12. Steam prices vary by region — always confirm your local price on Steam.

$21.99current · sampled 2026-09-25 21:36 UTC
$21.99lowest since tracking began2026-08-12
US21.99 USD
EU19.99 EUR
UK16.99 GBP
Australia31.50 AUD
Canada24.99 CAD
Japan2,200 JPY
Brazil41.99 BRL
China70.00 CNY

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

Brazil≈$8.1 China Japan Canada US Australia UK EU≈$23

Cheapest → most expensive, converted to USD at ECB reference rates (2026-09-25). Relative comparison only.

$0 $25 $50 08-12 08-21 08-30 09-08 09-16 09-25

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 01, 2023
4th Anniversary

Calling all commanders! Join us in celebrating the 4th anniversary of Marz: Tactical Base Defense! It's been four years since we launched our game, and we couldn't have done it without your support. T

Apr 30, 2020
Free update - Survival Mode

Hi folks, Crazy, it's been a year since we released MarZ. A good occasion to let you hear from us again and to say THANK YOU! MarZ Anniversary How time flies. Our game has been available on Steam for

Sep 20, 2019
Win MarZ & X-Morph game bundle

Hello Community! We've been at this years gamescom presenting MarZ at the amazing Indie Arena Booth. Thanks to those great guys we've had the opportunity to showcase our game on a very cool arcade boo

Jun 21, 2019
New Update - Overlapping energy hubs and no disappearing corpses!

We’re happy to announce a new MarZ update which adds two new features you guys have asked for. Introducing: Overlapping energy hubs and no disappearing corpses! \o/ Overlapping energy hubs https://i.i

May 15, 2019
New Patch available

https://i.imgur.com/Z5YizrZ.png Hello dear community. We have pushed a new patch which fixes some smaller bugs. Please make sure to update the game via your Steam client. Following the full changelog

Games like MarZ: Tactical Base Defense

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

They Are Billions They Are Billions 80.5% · 21,059 reviews shares RTS, Tower Defense, Base Building, Zombies Surviving Mars Surviving Mars 77.3% · 15,991 reviews shares Mars, RTS, Base Building, Resource Management Taur Taur 78.1% · 1,245 reviews shares RTS, Tower Defense, Base Building, Futuristic IXION IXION 81.6% · 8,793 reviews shares RTS, Base Building, Resource Management, Building Planetbase Planetbase 77.1% · 6,175 reviews shares RTS, Base Building, Resource Management, Building Grim Nights Grim Nights 87.7% · 758 reviews shares RTS, Tower Defense, Base Building, Zombies Cliff Empire Cliff Empire 84.9% · 1,746 reviews shares Tower Defense, Base Building, Resource Management, Futuristic Dyson Sphere Program Dyson Sphere Program 96.2% · 25,223 reviews shares RTS, Base Building, Resource Management, Building

Screenshots

Official Steam store screenshots — click any shot to enlarge.

Facts & details

From the Steam store record, snapshot 2026-05-13.

GenresIndie, Strategy
Player tagsStrategy · Tower Defense · RTS · Tactical · Indie · Zombies · Gore · Base-Building · Management · Sci-fi · Difficult · Mars (SteamSpy community voting)
FeaturesSingle-player · Steam Achievements · Steam Workshop · Steam Cloud · Steam Leaderboards · Includes level editor · Family Sharing
LanguagesEnglish * , German * , French, Spanish - Spain, Portuguese - Brazil, Polish, Russian, Simplified Chinese *
Achievements35
Official sitehttps://giantgrey.com
Minimum system requirements (PC)

Minimum: OS *: 64-bit Windows 7/8/10 Processor: Intel Core i5 Memory: 4 GB RAM Graphics: DirectX 10 compliant graphics card with 2GB dedicated memory DirectX: Version 10 Storage: 3 GB available space Sound Card: any