Life & fun · alternatives · 2026

24 alternatives to X-Core: Galactic Plague

Super difficult space strategy (like Plague, Inc.)

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. X-Core: Galactic Plague launched in 2016; newer entries below may have overtaken it.

1
X-Core. Galactic Plague▲55
The hardest strategy of 2016 for smart players!
2016 · play.google.com · its alternatives →
2
Alien Menace▲62
X-Com style turn-based strategy with adorable, 8-bit aliens.
2015 · spacehorrorgame.tumblr.com · its alternatives →
3IC
I created a Mars colony RPG based on Kim Stanley Robinson’s Mars books▲307
I built a desktop Mars colony survival game called Underhill, in homage to Kim Stanley Robinson's Mars trilogy. Land on Mars, build solar panels and greenhouses, and try not to pass out during dust storms. Eventually your colonists split into factions: Greens who want to terraform and Reds who want to preserve Mars. There’s Chill Mode for players that just want to build & hang, and Conflict Mode that introduces the Red v. Green factions. Reds sabotage, the terrain slowly turns green as the world gets more terraformed. Feedback welcome, especially on performance and gameplay!
Feb 2026 · underhillgame.com · its alternatives →
4
Space Grub▲79
Simple and fun space shooter
2017 · apps.apple.com · its alternatives →
5
Tharsis▲66
A turn-based space strategy game.
2016 · store.steampowered.com · its alternatives →
6
Galactic Keep▲57
A Sci-Fi tabletop-styled RPG
2015 · galactickeep.com · its alternatives →
7
Asterogue, my sci-fi roguelike, is now playable on the web▲331
Online roguelike with sci fi & space themes.
2024 · asterogue.com · its alternatives →
8
Stellaris▲68
Grand strategy, on a universal stage
2015 · paradoxinteractive.com · its alternatives →
9
Empire of Code▲63
A space game with a mix of strategy, tactics and coding.
2015 · its alternatives →
10
Star Command Galaxies▲60
The open world (galaxy?) version of a really great iOS game!
2015 · store.steampowered.com · its alternatives →
11
Stellar Interface▲56
A space-shooter meets a rogue-like-ish game
2016 · gamejolt.com · its alternatives →
12
Core Defender▲78
Kill your time with a challenging and simple gameplay
2021 · play.google.com · its alternatives →
13
Astroneer▲98
A game of aerospace industry and interplanetary exploration
2015 · astroneer.space · its alternatives →
14
Space Route▲56
An innovative strategy game set in space
2016 · apps.apple.com · its alternatives →
15
Space Shake!▲81
An arcade-style game. Help a founder survive in space.
2016 · its alternatives →
16
Elite: Dangerous▲89
Take control of your own starship in a cutthroat galaxy
2015 · store.steampowered.com · its alternatives →
17
Z-Type▲76
Your new favorite space shooter typing game
2014 · zty.pe · its alternatives →
18
Insectizide Wars▲75
Save Earth from extraterrestrial insectizide army
2015 · play.google.com · its alternatives →
19
Battlestation: Harbinger▲67
A hard sci-fi space exploration game
2016 · store.steampowered.com · its alternatives →
20
Space Dice▲55
A Game of Galactic Proportions
2015 · spacedice.com · its alternatives →
21
Out There▲91
A simple, atmospheric FTL-like space survival game
2015 · outtheregame.com · its alternatives →
22
Starbound▲67
An extraterrestrial sandbox adventure game
2015 · playstarbound.com · its alternatives →
23
Dunes War - Tower Defense▲61
It's time for you to gather all free people of the country.
2016 · apps.apple.com · its alternatives →
24
Risk of Rain▲69
Ultra challenging sci-fi roguelike, lots of items/upgrades
2015 · store.steampowered.com · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →