Best Sci-fi Games on Steam (2026)

Every game on the site tagged Sci-fi on Steam, ranked by popularity and current follower momentum.

Updated daily · June 29, 2026

The best Sci-fi games on Steam right now are Stellaris, No Man's Sky, PRAGMATA. We rank every game carrying the Sci-fi Steam tag by a popularity-and-momentum blend — total Steam reviews, follower count and 24-hour peak players, with extra weight for 7-day Steam follower growth so currently-rising games surface higher. 19 Sci-fi games tracked, updated June 29, 2026.
#GameReviews24h Peak7d GrowthSimilar
1Stellaris 86% (102,583)14,471+1,048similar →
2No Man's Sky83% (225,629)18,197similar →
3PRAGMATA 2,605+932similar →
4Jump Space88% (7,032)433+211similar →
5Marathon85% (1,666)+367similar →
6SpaceEngine96% (8,789)262+212similar →
7SpaceCraft +1,225similar →
8Space Engineers 276% (2,809)300+234similar →
9THE LIFT: Supernatural Handyman Simulator+271similar →
10Space Scum+190similar →
11Cronos: The New Dawn88% (4,906)389similar →
12Calyx94% (164)81similar →
13Truckfulsimilar →
14Silent Planet - Elegy of a Dying Worldsimilar →
15ONTOSsimilar →
16Donutalsimilar →
17Crimson Freedomsimilar →
18Aphelionsimilar →
19Altered Almasimilar →

19 Sci-fi games tracked · 9 currently gaining Steam followers · data via Steam & SteamDB · all tags · trending by genre · all trending games →