
A faithful digital adaptation of the acclaimed board game Space Empires 4X by GMT Games, beloved by wargamers for almost two decades. Command the rise of your civilization and the fall of others, all in one to two hours.
Modeled estimate, not a reported figure. How we estimate →
About

Enjoy the depth of a 4X game in a fraction of the time! A game of Space Imperia 4X typically lasts one to two hours. The game is played over a series of rounds, with each consisting of three turns of movement, combat, and exploration, plus one turn of researching techs and building ships.

The only goal of the game is to eliminate all rival home worlds! Victory calls for a blended strategy, including resource management, ship construction, technological research, and tactical-level decisions on a map where no two games are the same.


Build up to 17 different combat and civilian ships, each with different stats and purposes.
Dreadnaughts are the most powerful ship available in the game. They take dedicated research and infrastructure to unlock and yield effectively. Once available, however, its combat stats are the best in the game and a fleet of them can decisively end the game. The counter: any ship is vulnerable to Mines — and these massive capital ships are no exception.
Raiders are Cloaked - nimble, first-strike craft that can move through enemy formations and get special bonuses in combat. They require a special technology to be built. A well-timed fleet of Raiders often leads to decisive victory. The counter: Raiders don't work in Nebula, and Destroyers can equip Scanners to negate the cloaking.
Fighters are pure strength in numbers doctrine. Fighters are cheap to build, while Carriers are expensive and are required to move Fighters around the battlefield. Fighters attack earlier in combat, allowing them to first-strike other ships in large numbers. The counter: Scouts can equip Point Defense to shoot earlier than enemy Fighters, negating their advantages.


Research up to 14 different technologies, each with a distinct role. Master the full toolkit to outmaneuver and destroy your rivals.
Ship Size gates which hulls you can build. Bigger hulls take more hits to destroy and carry higher-level technology, but cost more to build and maintain.
Exploration allows Cruisers to equip advanced sensors which can discover adjacent systems without movement. Scout hazards like Black Holes safely, then craft an informed plan to defeat the enemy.
When ships of the same Weapon Class fire, the ships with higher Tactics shoot first, potentially securing kills before the other ship ever acts.


Uncover a galaxy filled with different terrain types, harvestable minerals, and derelict ship wrecks. Balance the risks and rewards of exploring Deep Space while carving a path toward your rivals' home worlds. Colonize newly-found habitable worlds. Not all worlds are the same - when colonizing, Barren Planets need special Terraforming technology, while Alien Planets require military action to clear alien ships.

Build and expand a network of Merchant Ships and Miners to increase credit income and economic production.
Manage your military fleet - decide what ships to build, what techs to equip them with, and how best to defeat the enemy's formations. Deploy your fleets on the battlefield to vie for control of deep space in order to ultimately destroy your enemy's home world. The combat system of Space Imperia 4X is a rewarding mixture of scouting, positioning, attacking, and bluffing - all combat ships are concealed from the enemy until first contact!

Play in over 10 different scenario setups of 2-4 players, with optional rules and various ways to play. Full multiplayer support, including live matches, long-term asynchronous games, as well as online co-op vs AI matches.
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Add-ons
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Engagement
Reviews
Themes across 73 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
Reviews
All the Space Empires 4X experience without the finickle of handling pen and paper spreadsheets. What can I say? I've finished a scenario in less than 1h. Huge win for GMT!
Full disclosure, I know the developer. But this isn't my type of game. I don't play turn-based strategy, and I wasn't expecting to get invested in the gameplay. Playing this quickly brought me back to better times in gaming. I felt the challenge and the pressure; I wasn't sure how strong the fleets gathering on my doorstep were. Hoping they'd wait just one more turn so I could reposition. Constantly reevaluating my fleet composition against my play style. Do I hold back? Stretch thin? Split my forces? Consolidate? Real classic fun. A challenge, not mindless entertainment. Not a graphics expo, half-baked trend-follower, or pay-to-win storefront. Excellent game. p.s.: some reviews here didn't love the music. I disagree. It's unique, and it immediately puts me in the right headspace. Steady. Methodical. Ready to command a fleet.
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Languages: English*, French, Italian, German, Spanish - Spain*languages with full audio support
Hours played at review time, across 73 reviews with recorded playtime.
positive critical· bar length = how often the theme comes up
I did not expect to be drawn into playing for hours in a single game. Kudos to the developers, a well crafted 4X strategy game I look forward to playing more.
I've never rolled so many 9s and 10s in my life! Unfortunately in this game, those are bad. Yeah yeah, RNG, take the good with the bad, blah blah blah. RNG can be brutal, but 5 10's in a row? 0.001% chance. Possible, but so unlikely. Then throw in a single dice roll of a 2 followed by more 10s... When a game increases the difficulty by making you roll worse numbers, that's just sloppy coding. The demo was OK, very simple and not a lot of options so I was looking forward to the full game. But meh, this is not worth $20. If it is ever on sale for $10, sure, pick it up and get ready for some amazing high rolls that don't help you.
I haven't played the board game so this has taken a bit of learning on the job as I found the tutorial a bit bare bones. Nonetheless I can recommend this game, a nice quick paced 4X without being overly complicated. I'm looking forward to delving further into the strategies and getting my ass whooped in multiplayer. A big up to the Dev too, he appears to be fixing issues at apace.
PROS It works. It's mostly faithful to the board game SE4X. The Threat system is a good idea. CONS Graphic style is bland. Lots of bugs at launch. The Threat system is not refined yet. Many options from the base game are still missing. In short, this is a beta launched as a full title. I think it will be good someday.
My recomendation is based on solitaire games, working my way by map size up to 2P Massive so far. I'm using the base rules because I want to discover the optional rules when playing MP with my friends in September. I haven't played the board game, but SI4X is exceptional. It distills 4X to the essential concepts, letting the players use their own imagination to fill in any gaps. Simple, but infinately replayable. These are early days since the release date, and every day that I play there are new UI features and bugs fixed.
The UI could be better, and not being able to select multiple units to move at once is rather annoying for managing large fleets, but as someone who has lacked a group to play the boardgame with for years, this is quite fun to finally be able to play the game.
Space Empires 4X in a less fiddle manner. Highly recommended for anyone who knows/plays the original game, but for new players as well. Devs are super fast on responding and patching stuff, really amazing experience.
Un juego increíble de mesa adaptado genial a PC. Todavía se pueden pulir algunas cosas, pero agiliza las partidas mucho y la IA es desafiante.
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