Sci-fi Hentai Games

Browse 7 Sci-fi hentai games, every one translated into English and free to download.

Most are RPG and Simulation titles, though you'll find plenty of other styles here.

Titles tagged Sci-fi frequently also feature Adventure, Male Protagonist, and Oral.

Sort by newest for the latest releases or by quality score to surface the best-rated first, with builds for Windows, Android, Mac, and Linux where available.

Related tags:Adventure Male Protagonist Oral Vaginal Fantasy Lesbian 2D Big Breasts Female Protagonist Romance Uncensored Big Ass

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Planet Stronghold 2 - RPG hentai game thumbnail

Planet Stronghold 2

MECHANICA: A Ballad of the Rabbit and Mercury - RPG hentai game thumbnail

MECHANICA: A Ballad of the Rabbit and Mercury

S.H.E.L.T.E.R. – An Apocalyptic Tale - Simulation hentai game thumbnail

S.H.E.L.T.E.R. – An Apocalyptic Tale

Titans Tower - Visual Novel hentai game thumbnail

Primeval Planet: Angimanation - Action hentai game thumbnail

Primeval Planet: Angimanation

DaiBanChou ~Big Bang Age~ - RPG hentai game thumbnail

DaiBanChou ~Big Bang Age~

Trample on “Schatten!!” ~Kagefumi no Uta~ Revolution+ - Adventure hentai game thumbnail

Trample on “Schatten!!” ~Kagefumi no Uta~ Revolution+