About
On Steam, 85% of 75 player reviews are positive (Very Positive). 1 person is playing it on Steam right now, with a peak of 3 in the last 30 days. It is Verified on Steam Deck.
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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Media
Releases
Platform
Date
October 29, 2025
Earliest full release on each platform; regional dates can differ.
PC and Steam Deck
Steam store pageSteam Deck: Verified works great out of the box
Minimum
Recommended
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
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Requirements and Deck status as listed on Steam, checked Oct 29, 2026.
Earth vs. Mars player count
concurrent players on Steam1playing now5h ago
1peak today
330-day peak
3highest we have seenOct 30, 2026
Oct 23daily peak, last 12 daystoday
Players counted on Steam every one to six hours; the daily peak is the highest count of the day.
Earth vs. Mars achievements
51 achievements on SteamRarest
No Turning Back Finish the campaign in Brutal Mode on any difficulty.
0.3%
We’ve Lost Friends Finish the campaign in Permadeath Mode on any difficulty.
0.5%
Pandas and Scorpions and Beavers, Oh My!
0.7%
Map Explorer Download and play a custom map.
1.9%
Hot Mic
2.1%
Map Maker Publish a cool custom map.
2.3%
All 51 achievements by how many players unlocked them
The Mogul
3.1%
The Major
3.5%
I Saw Its Tail
3.6%
The Kaijupro
4.9%
Red Conveyance Down Destroy 100 Martian Saucers.
5.1%
Who’s Endangered Now?
5.6%
Our Units are Special Purchase every unit ability in a single campaign.
6.2%
Splice Expert Purchase every DNA type in a single campaign.
6.4%
Bargain Shopper Purchase every unit discount in a single campaign.
6.6%
The Theorist
7%
VM Day Complete the campaign on any difficulty.
7.1%
You're Spare Parts Bud Reclaim the essential elements of a fully spliced soldier.
7.3%
Moral Bankruptcy
7.4%
So Long, Creep
8%
We Go Forward
8.4%
He Was Just Scared
8.4%
Scorpion King
8.4%
Eggwalker Down
8.6%
And Boy Are My Arms Tired
8.6%
Calgary '82
9.5%
For the Score Play a challenge mission.
9.8%
Zarb's Worst Nightmare Kill 500 core Martian units.
10.4%
I Thought We Were Friends
10.5%
Master Blaster Kill 100 Martian Blasters.
11.1%
As Nature Intended Slot three different DNA types on a single volunteer.
13.6%
Check Behind the Couch Have less than 100 marsonium.
13.9%
De-hybridizer
14.3%
That Can't Be Good
15.3%
I Want to Believe
15.9%
Did it work?
16.5%
Meet the Jones'
16.6%
Super Trooper Killer Kill 100 Martian Troopers.
18.2%
Kill All Martians Kill at least one of every core Martian unit.
18.7%
Goo News
19.1%
Creeping Terror
19.2%
I'll Take That Kill three units that reward marsonium in one campaign mission.
25.1%
Only in an Emergency
26.2%
Ready for Anything Fill every slot on a single volunteer.
33.9%
That's No Weather Balloon Destroy a Martian Saucer.
34.8%
Amateur Blaster Kill a Martian Blaster.
64.2%
Turn the Tide Use a commander power.
66.4%
I'll be Fine
82%
First Contact
83.2%
Trooper Killer Kill one Martian trooper.
87.9%
Come up to the Lab
93.6%
Share of Steam players who unlocked each achievement.