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MarZ: Tactical Base Defense on Steam - User reviews, Price & Information

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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.

MarZ: Tactical Base Defense is a strategy, tower defense and rts game developed and published by Giant Grey.
Released on April 04th 2019 is available only on Windows in 8 languages: English, German, French, Spanish - Spain, Portuguese - Brazil, Polish, Russian and Simplified Chinese.

It has received 866 reviews of which 680 were positive and 186 were negative resulting in a rating of 7.5 out of 10. 😊

The game is currently priced at 19.99€ on Steam, but you can find it for 4.00€ on Gamivo.


The Steam community has classified MarZ: Tactical Base Defense into these genres:

Media & Screenshots

Get an in-depth look at MarZ: Tactical Base Defense through various videos and screenshots.

System requirements

These are the minimum specifications needed to play the game. For the best experience, we recommend that you verify them.

Windows
  • 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

User reviews & Ratings

Explore reviews from Steam users sharing their experiences and what they love about the game.

12 hours played
Aug. 2026
MarZ: Tactical Base Defense is a science-fiction strategy game that blends tower defense, base construction, resource management, and tactical decision-making into a distinctive battle for survival on Mars. Developed and published by Giant Grey, the game takes the recognizable idea of defending a position against waves of enemies and expands it with personnel management, research, power infrastructure, and multiple approaches to survival. Its unusual combination of Martian colonization and undead cosmonauts gives the experience a memorable personality, while its strategic systems demand considerably more attention than simply placing defensive towers and waiting for enemies to arrive. The story takes place in 2065, when humanity has begun preparing Mars for colonization. The mission quickly becomes more complicated when the first arrivals discover that the planet is already occupied by hordes of undead cosmonauts. This bizarre discovery becomes the central mystery behind the campaign, with players gradually investigating the history of Mars and determining how these creatures came to exist. The premise is intentionally strange, but it fits the gameplay remarkably well. The empty Martian environment reinforces the isolation of each defensive installation, while the mystery provides a reason to continue progressing beyond the simple desire to defeat increasingly difficult enemy attacks. The main campaign consists of 20 missions and includes alternate endings. Rather than presenting every battle as a straightforward path-defense scenario, MarZ regularly forces the player to think about several fronts at once. Enemies can approach from different directions, meaning a heavily fortified section of the base provides little comfort if another entrance has been neglected. This creates a constant need to evaluate threats and redistribute attention. Crew members contribute another tactical layer because they can confront individual attackers or operate towers and buildings. Personnel therefore function as useful resources that must be positioned intelligently rather than merely serving as decorative inhabitants of the base. Base construction is closely connected to resource and power management. Players establish a power grid and gradually build the infrastructure required to maintain increasingly sophisticated defenses. This creates an enjoyable conflict between immediate survival and long-term development. Spending everything on additional weapons may protect the base during the next assault, but failing to invest in technology can leave the player poorly prepared for stronger enemies later. Conversely, focusing too heavily on research can create dangerous weaknesses in the current defensive perimeter. The best moments occur when the player has to make difficult decisions with limited resources while several vulnerable areas demand attention. Research provides meaningful opportunities to develop different defensive solutions. Through facilities such as the technology center and arms factory, players can unlock new turrets, perks, upgrades, and eventually powerful super weapons. The available technology includes repair drones, mines, mortars, prism lasers, and Tesla-based defenses capable of teleporting zombies. These additions make progression more interesting because improvements are not restricted to basic numerical increases. New technology can change how enemies are controlled and how defensive positions are organized, encouraging experimentation with combinations of weapons instead of relying permanently on one successful layout. The campaign is only one part of the package. Skirmish mode allows customized procedurally generated encounters, providing a less scripted environment for testing defensive strategies. Outbreak offers a particularly aggressive variation by replacing conventional waves with one enormous zombie horde. This substantially changes the pace because the player cannot depend as heavily on periods of relative calm between attacks. A defensive network must withstand prolonged pressure, making preparation and efficient construction especially important. The game's three difficulty settings have also been rebalanced, helping provide different levels of challenge depending on how demanding players want their defensive experience to become. One of the more valuable additions is Marsform, the game's integrated map editor. It includes terraforming tools that allow players to sculpt their own environments and create custom defensive scenarios. These creations can be shared through Steam Workshop, significantly expanding the potential amount of content available beyond the official campaign. A map editor is particularly appropriate for this type of strategy game because terrain design directly affects enemy movement, defensive positioning, and resource priorities. Players interested in creating challenges can therefore manipulate many of the same environmental factors that define the official missions. MarZ also includes Twitch integration that allows viewers to influence streamed games by either helping or sabotaging the player. It is not essential to the core experience, but it is an imaginative addition that complements the game's already unpredictable battlefield pressure. Steam achievements, leaderboards, cloud functionality, Workshop support, and the level editor further strengthen the surrounding package. The mature content is primarily fictional combat involving weapons, blood, and violence, which fits naturally with the concept of defending settlements against undead attackers. The visual and thematic presentation succeeds because the hostile Martian landscape naturally supports the feeling of being surrounded. Futuristic structures and technology contrast nicely with the grotesque absurdity of zombie cosmonauts. More importantly, the presentation keeps the strategic information understandable enough for players to monitor several threats simultaneously. The atmosphere never completely overwhelms the functional requirements of a tactical defense game, which is important when rapid decisions about construction, personnel, research, and enemy movement can determine whether a base survives. There are some limitations inherent in the design. Players expecting a traditional large-scale real-time strategy game may find the emphasis on defensive positions somewhat restrictive, while those who dislike the repeated rhythm of preparing for enemy assaults may eventually find the fundamental gameplay cycle repetitive. Difficulty can also rise sharply when multiple fronts become active, especially when earlier resource decisions have created weaknesses that cannot easily be corrected. However, this pressure is also one of the game's strongest qualities because successful defenses feel earned through planning rather than brute force. Overall, MarZ: Tactical Base Defense is a well-developed hybrid that adds meaningful strategic systems to the tower-defense formula. Giant Grey uses resource management, crew deployment, research, power infrastructure, varied weapons, multiple modes, custom maps, and a surprisingly entertaining Martian mystery to create an experience with more depth than its basic premise initially suggests. The 20-mission campaign provides a structured core, while Skirmish, Outbreak, Marsform, and Workshop functionality give dedicated players reasons to continue experimenting afterward. It is particularly easy to recommend to players who enjoy defensive strategy games where preparation, efficiency, adaptation, and careful allocation of limited resources matter as much as raw firepower. Rating: 8/10
20 hours played
July 2026
Great game, the campaign was a nice experience, some harder levels some easier. Will try a skirmish shoon, shame there is no multi-player but then again how can you defend vs other player?
43 hours played
May 2026
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 especially appreciated the addition of crew as an additional aspect that you'll need to manage in order to be successful. It's not enough to just build towers where the enemies will be coming. You'll also need to build power relays to power them, and assign crew members to man them. In addition to towers, you'll need to build a number of other support buildings to harvest resources and upgrade your towers. The game seems very simple on its face, but once you start getting into the later levels you'll find that you need to manage your resources and time very carefully in order to succeed. Excellent game. If they made a sequel, I'd buy it.
6 hours played
March 2026
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 my second monitor and do quick alt tabs or just focus on the game and pause it anytime i have to do something there no matter how quick :(
401 hours played
Feb. 2026
Fantastic game that I keep coming back to over and over. Tremendous replay value, great graphics, excellent audio and killer gameplay. I'd buy any game from these guys, seriously.

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Frequently Asked Questions

MarZ: Tactical Base Defense is currently priced at 19.99€ on Steam.

No, MarZ: Tactical Base Defense is currently not on sale. You can purchase it for 19.99€ on Steam.

Yes, MarZ: Tactical Base Defense received 680 positive votes out of a total of 866 achieving a rating of 7.48.
😊

MarZ: Tactical Base Defense was developed and published by Giant Grey.

Yes, MarZ: Tactical Base Defense is playable and fully supported on Windows.

No, MarZ: Tactical Base Defense is not playable on MacOS.

No, MarZ: Tactical Base Defense is not playable on Linux.

This information about MarZ: Tactical Base Defense is not available yet.

This information about MarZ: Tactical Base Defense is not available yet.

No, MarZ: Tactical Base Defense does not support VR.

MarZ: Tactical Base Defense is a single-player game.

No, MarZ: Tactical Base Defense does not currently offer any DLC.

Yes, MarZ: Tactical Base Defense is fully integrated with Steam Workshop. Visit Steam Workshop.

No, MarZ: Tactical Base Defense does not support Steam Remote Play.

Yes, MarZ: Tactical Base Defense is enabled for Steam Family Sharing. This means you can share the game with authorized users from your Steam Library, allowing them to play it on their own accounts. For more details on how the feature works, you can read the original Steam Family Sharing announcement or visit the Steam Family Sharing user guide and FAQ page.

You can find solutions or submit a support ticket by visiting the Steam Support page for MarZ: Tactical Base Defense.

Data sources

The information presented on this page is sourced from reliable APIs to ensure accuracy and relevance. We utilize the Steam API to gather data on game details, including titles, descriptions, prices, and user reviews. This allows us to provide you with the most up-to-date information directly from the Steam platform.

Additionally, we incorporate data from the SteamSpy API, which offers insights into game sales and player statistics. This helps us present a comprehensive view of each game's popularity and performance within the gaming community.

Last Updates
Steam data 09 September 2026 14:15 UTC
SteamSpy data 12 September 2026 07:06 UTC
Steam price 16 September 2026 10:38 UTC
Steam reviews 13 September 2026 22:05 UTC

If you'd like to dive deeper into the details about MarZ: Tactical Base Defense, we invite you to check out a few dedicated websites that offer extensive information and insights. These platforms provide valuable data, analysis, and user-generated reports to enhance your understanding of the game and its performance.

  • SteamDB - A comprehensive database of everything on Steam about MarZ: Tactical Base Defense
  • SteamCharts - Analysis of MarZ: Tactical Base Defense concurrent players on Steam
  • ProtonDB - Crowdsourced reports on Linux and Steam Deck MarZ: Tactical Base Defense compatibility
MarZ: Tactical Base Defense
Rating
7.5
680
186
Game modes
Features
Online players
1
Developer
Giant Grey
Publisher
Giant Grey
Release 04 Apr 2019
Platforms
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