Earth vs Mars

70KS
Released Oct 29, 2025by Relic EntertainmentVery Positive(86% of 81 Steam reviews)

Faced with a terrifying Martian invasion, you must lead Earth’s forces in a battle for our planet’s future. Create powerful human-creature super soldiers to fight an alien menace in this turn-based strategy game.  

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About Earth vs Mars

Martians have been visiting Earth for decades, abducting animals and humans and harvesting their atomic essence to create bizarre Martian-creature hybrids. This time they’re here to claim our planet. 

In this turn-based strategy game, an unlikely group of commanders will lead Earth’s military as they face an overwhelming Martian invasion. Fight high-tech saucers, grav-tanks and elite alien warriors in a battle for the planet’s survival. 

Your secret weapon is the “Splice-O-Tron". With it, you can combine human "volunteers" with Earth creatures to create powerful hybrid supersoldiers to fight alongside Earth’s regular military. 

Rain acid from the skies with the fast-moving cheetah-fly. Charge through enemy lines with devastating human-rhino hybrids. Or strike from the forests with your deadly squirrel-cow infantry.  

As the campaign progresses, you’ll unlock new types of creature, powerful unit upgrades and game-changing commander abilities. But as your army evolves, so will your enemy’s, and you’ll face everything from the sentient organic weapon known only as “The Creep” to the Martian’s own mutant creations. 

KEY FEATURES

  • Splice-O-Tron – Bringing some old-school Relic flavor to this genre, the Splice-O-Tron is a key mechanic in Earth vs Mars. Combining creatures with human “volunteers” will allow you to field an array of exciting and powerful hybrid units

  • Single Player Campaign – Earth vs Mars features an expansive narrative focused campaign composed of over 30 hand-crafted missions

  • Online Multiplayer – Battle against other commanders in 1vs1 multiplayer, either as the armies of Earth or as the forces of the Martian Invaders

  • VS Mode – Battle against the A.I. on custom maps giving endless replayability to single-player fans

  • Challenge Mode – Chase your high score in battles against the A.I.

  • Brutal Mode - Raises the difficulty across the entire campaign, where mission failure means the end of your run. 

  • Permadeath Mode - When enabled, defeated spliced creatures are gone forever, raising the stakes of every battle.

  • Map Lab – Fully featured map editor allows you to create custom maps and scenarios

  • Unit Abilities – Many of the units in Earth vs Mars have their own unique abilities, adding new strategies and gameplay depth to this style of game

  • Commanders – There are multiple commanders in the game, each bringing unique abilities that change the way you play

  • Beautifully realized 3D world – The world of Earth vs Mars brings expressive units, vibrant environments, and stunning effects to players

  • Fully Voiced Experience - The game is fully voiced, bringing commanders, units and story moments to life

Earth vs Mars is our first game under the Relic Labs banner. Relic Labs games differ from our traditional, larger-scale strategy titles (which we're continuing to support and develop) in that they are created by smaller teams with shorter development cycles and a goal of experimenting in new strategy spaces, creating fun new worlds, and getting them in the hands of players sooner. Earth vs Mars was made by a small team of passionate Relicans with the goal of paying homage to some of our favorite strategy games, while adding a Relic twist.

Game details

Game details

Released
Publisher
Platforms
Controller support
Full
Steam Deck
Verified
Steam rating
Very Positive (86%)

Age ratings

IGRS 13DEJUS 12STEAM_GERMANY 12

Languages

Audio & text: English

Text only: French, Italian, German, Spanish - Spain

Earth vs Mars price history

Lowest tracked price: $8.99 (Jul 7, 2026) · current best: $8.99.

Earth vs Mars player count & reviews

86% positive reviews all-time · 5 peak players in the last 30 days.

Earth vs Mars — frequently asked questions

Where can I buy Earth vs Mars at the cheapest price?

Right now the cheapest offer for Earth vs Mars is $8.99 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.

What is the lowest price Earth vs Mars has ever been?

The lowest price KingsPrice has tracked for Earth vs Mars is $8.99 (recorded on Jul 7, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.

How many people play Earth vs Mars?

Earth vs Mars peaked at 5 concurrent players on Steam in the last 30 days (highest on Jul 24, 2026). The player chart on this page updates daily.

How can I get Earth vs Mars at a discount?

Create a free price alert on this page and KingsPrice will email you when Earth vs Mars drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.

System requirements

Minimum

Minimum:
  • Requires a 64-bit processor and operating system
  • OS: Windows 10
  • Processor: Intel i5-8350U, AMD Ryzen 5 3500U, or equivalent 4 core processor
  • Memory: 8 GB RAM
  • DirectX: Version 12
  • Storage: 8 GB available space

Recommended

Recommended:
  • Requires a 64-bit processor and operating system

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