Rank 01Why this
Also Space Sim and Trading, like X4: Foundations.
- $3.19 (Price checked Nov 7)
- Deck Playable
- 2008
The closest matches to X4: Foundations: X3: Terran Conflict, X3: Reunion, X2: The Threat, Elite Dangerous, and X: Beyond the Frontier. Ranked by imho.run from Steam co-play data, shared tags and reviews.
Rank 01Why this
Also Space Sim and Trading, like X4: Foundations.
Rank 02Why this
Shares ship customization with X4: Foundations.
Rank 03
Why this: Same immersive mood as X4: Foundations.


Why this: Also Space Sim and Flight, like X4: Foundations.


Why this: Also Economy and Space, like X4: Foundations.
Also Grand Strategy and Base-Building, like X4: Foundations.

Players highlight
Surfaced from review text: when other players write 'if you liked X, try Y', we catch the name and resolve it back to a Steam game.

Why this: Shares ship customization with X4: Foundations.

Why this: Also Grand Strategy and Space, like X4: Foundations.

Why this: Same immersive mood as X4: Foundations.




Why this: Also Space Sim and Base-Building, like X4: Foundations.

Why this: Same challenging mood as X4: Foundations.
Games in the same vein priced at least 40% below X4: Foundations at current Steam store prices.

Why this: Also Space Sim and Base-Building, like X4: Foundations.

Why this: Also Space Sim and Flight, like X4: Foundations.

Why this: Same immersive mood as X4: Foundations.

Other recommendable Steam games by Egosoft, ranked by review count so the studio's hits land first.

Why this: Also Space Sim and Trading, like X4: Foundations.

Why this: Same epic mood as X4: Foundations.

Why this: Also Space Sim and Flight, like X4: Foundations.
The closest matches to X4: Foundations: X3: Terran Conflict, X3: Reunion, X2: The Threat, Elite Dangerous, and X: Beyond the Frontier. Ranked by imho.run from Steam co-play data, shared tags and reviews.
If X4: Foundations is your kind of game, the closest matches are X3: Terran Conflict, X3: Reunion and X2: The Threat — picked from the ranked list below. Reviewers describe it as challenging, contemplative and epic, and single out its automated trade routing and faction economy simulation. Each pick is ranked by what players of this game also play, shared genres and tags, and review-mined similarity — not a generic popularity list.
X4: Foundations is a space simulation game released in 2018 that combines action, strategy, and sandbox gameplay. Players start with a single ship and gradually build sprawling empires across a living universe. The game features automated trade routing, faction economy simulation, fleet logistics, production chain management, and ship customization. Reviewers highlight how every action ripples through faction economies, and players describe the deep production chains as feeling tangible. Mastering strafing and docking proves essential for survival. The experience is challenging and massive in scope, offering solo players endless emergent stories rather than a defined end state. Currently priced at $12.49 USD, it runs verified on Steam Deck and holds a 79% positive rating from over 13,000 Steam reviews.
About X4: Foundations: Your journey to building a vast space empire begins behind the controls of a single ship. Explore, trade, fight, and build as you rise to command fleets, stations, and entire economies in a living, fully simulated universe that reacts to every decision.
Mostly recommended
A summary of what players say, not a promise you'll like it. Every signal is listed below.
The most up-voted negative English reviews in our sample, quoted as written.
“The UI is the worst I've ever seen. I'm not exaggerating. From any game I can ever remember playing or even looking at, this one stands at the peak of awful UI. I cannot excuse it, and I cannot recommend it. Maybe someday if they do a…”
“Disappointed. The game has many good things but most of them are behind boring mechanics. I don't even wanna talk about the UI. Some story missions shouldn't even exist. Go to that place. It takes you 3-4 min with travel mode. Talk to…”
People who play it also play: X3: Terran Conflict, X3: Reunion, X2: The Threat
Yes — X4: Foundations is Steam Deck Verified, meaning Valve has confirmed it runs well on the Deck with full controller, text legibility, and default configuration support.
X4: Foundations is listed on Steam at 9.99 USD (current store price; Steam sales may reduce this temporarily).
Based on Steam play patterns and shared genres/tags, the games most often recommended alongside X4: Foundations are X3: Terran Conflict, X3: Reunion, X2: The Threat.
X4: Foundations was developed by Egosoft.