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Watch trailer on Steam ↗Earth vs Mars
Relic Entertainment · Published by Relic Labs
Very Positive — 87% positive (83 reviews) · 51 achievements
Last updated 30 Sept 2026
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.
£11.99
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Price history
Strategy, Casual · 2025 · More £5 - £15 games
Command super soldiers and defend our planet in Earth vs Mars, a turn-based strategy game where your decisions shape humanity's fate.
About this game
Earth vs Mars
About the Game
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.
System Requirements
Will my PC run this? →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
- Requires a 64-bit processor and operating system
Supported Languages
*languages with full audio support
Latest news
Patch NotesOfficial
Hot Fix 1.2.1
Fixed an error where units healed by Nia's passive ability would appear to be healed visually, but not receive the healing value.Read full article on Community Announcements (John_RE)Press Coverage
Earth vs Mars the Advance Wars-like from Relic Entertainment gets Steam Deck Verified
Relic Entertainment produced their own Advance Wars-like strategy game with Earth vs Mars from a smaller team, and now it is updated to be Steam Deck Verified. Read the full article here: https://www.gamingonlinux.com/2026/02/earth-vs-mars-the-advance-wars-like-from-relic-entertainment-gets-steam-deck-verified/Read full article on GamingOnLinuxAnnouncementsOfficial
Earth vs Mars is Now Steam Deck Verified✅
Earth vs Mars now delivers a fully playable handheld experience with optimized performance and intuitive controls across campaign, multiplayer, and all game modes. Today's update also includes three new Splice-O-Tron creatures, two new high-stakes game modes, and all-new Commander passive abilities. To celebrate, Earth vs Mars is available now with a 40% discount on Steam, our biggest discount to date! Steam Deck HighlightsFully compatible controls and UI for handheld play Optimized performance for smooth turn-based gameplay Play the full campaign, multiplayer, and versus modes on the go Perfect for pick-up-and-play strategy sessions or longer tactical runs New Creatures in the 1.2.0 Update New Splice-O-Tron Creatures Three new creatures expand the Splice-O-Tron roster, unlocking fresh hybrid unit combinations and expanding the creative and strategic depth of unit splicing!Red Panda – Cute, but ferocious, this creature strikes fear in its enemies Ability: Ferocious Bellow – Let out a roar, pushing back all enemy units nearby Passive Ability: Indefatigable - Attacking an enemy unit restores a small amount of health Scorpion – Defensive creature with snapping claws and a vicious sting Ability: Pinning Attack – Strikes a single adjacent target, pinning them in place Passive Ability: Acid Strike - Attacking a unit places an Acid Pool under the target, damaging enemy units that start their turn on the tile Beaver - An amphibious, defensive creature focused on terrain control and battlefield disruption. Ability: Build Dam – Builds a dam, blocking movement through the target tile for 2 turns Passive Ability: Wet Fur - Starting a turn on a water tile increases defense until the start of your next turn. Walks on water New Commander PassivesCommanders gain access to nine new passive abilities, each encouraging distinct playstyles and long-term strategic planning across campaigns and modes. Annabel CormanRegenerative ByproductsHeadquarters tiles restore +100% increased healt...Read full article on Community Announcements (John_RE)Patch NotesOfficial
1.2.0 Update Patch Notes
Our biggest update yet brings a host of new content (including new creatures!) alongside official Steam Deck verification. NEW CREATURES Campaign, skirmish and multiplayer modes now have three new types of creature DNA available in the Splice-O-Tron. The Beaver is a powerful amphibious engineer that can restrict enemy movement using its Build Dam ability and gains additional defense when starting a turn on water The Scorpion can use its Clamping Strike to lock an opponent in place and its tail to place a deadly acid pool under enemy units And the fearsome Red Panda gains health by attacking its opponents and can use its Ferocious Bellow to damage and drive back enemies PASSIVE COMMANDER ABILITIES Each of the 9 commanders now has their own unique passive ability. From earning cash by defeating enemy units to faster ability cooldowns, the new abilities open up new tactical and strategic possibilities for both campaign and skirmish modes. Annabel Corman Regenerative Byproducts - Headquarters tiles restore +100% increased health Colonel Marcus Shaw Terrain Boost - Hill/Forest/Mountain/City/Industry/Airport tiles provide increased defense Major Nia West Field Requisitions - Capturing a city heals all nearby friendly units for 30 health Dr. Squance and Dr. Blevins Vector Calculations - Friendly flying units move one tile further Eric the Mutant Atomic Resonance - Spliced ability cooldowns reduced by 1 turn Gene Orson, CEO Bounty Hunting - Gain Cash for every enemy defeated Kaz Smith Dr. Chuckles - Gain bonus Commander Power at the start of your turn Sergeant Emi Takamoto Priority Target - Enemy units already hit on a turn take +20% increased damage Emperor Zarb Superior Technology - Air units are discounted by -15% NEW CAMPAIGN MODES For players looking for a bigger challenge, we’ve added two new campaign modes. Permadeath Mode - spliced creatures die permanently if they're killed in battle Brutal Mode - The stakes are even higher in this mode where not only do sp...Read full article on Community Announcements (Hannah_RE)Patch NotesOfficial
1.1.0 Update Patch Notes
The team is back from the holiday break with a new update that adds Steam Deck compatibility and fixes some bugs including an issue that could prevent players from progressing past the end of the turn. We’ve also added an option to improve performance by using a static background on the combat screen and addressed some minor UI and controller issues. With this update, the game is now officially playable on Steam Deck. The team is continuing to work on updates, including the final tweaks required for full Steam Deck verification. Thanks to everyone for your messages and bug reports. We use your feedback to prioritize changes, so please continue to report any issues to us at help.relic.com or drop by our Discord to chat with the development team and other players. GeneralAdded an option to have a static background on the combat screen, improving performance if enabled. You can enable this in the Graphics section of the Settings menuBug FixesEnd turn prompt waits for all actions to complete before appearing. This fixes issues where the HUD would disappear and the game would not progress Fixed incorrect stats on AI-spawned cow spliced units Optimized several effects textures Fixed an issue where text could get cut off during the credits scroll Fixed an issue where system benchmarks were not being applied to the settings. Controller - Fixed cursor sometimes being in wrong position after switching units Controller - Fixed an issue where buttons would sometimes not react to input in the Splice-O-Tron Controller - Added a binding to skip narrative dialogue. Using this button also makes our writer a little bit sad Controller - Enabled tabbing between pages in the Help menu Controller - Allowed right-stick to scroll in the Help menuRead full article on Community Announcements (Greta_RE)
