Topwith demos tagged Sci-fi and Singleplayer (71 results)
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ΔV: Rings of Saturn
$9.99
Hard sci-fi, top-down space simulator, with every aspect backed up by real physics and science.
Simulation
Adam - Lost Memories
$14.99
A psychological horror game, based on a true story that happened to me when I was a child.
Puzzle
An open world driving game with gay robots in it
Interactive Fiction
Extraneum
$14.99
Fight your way through biohacked monstrosities and stop their progress in this old school FPS
Action
A retro sci-fi comedy point and click adventure featuring the hapless Captain Disaster.
Adventure
An exiled Talifan hermit has left a mysterious Codex for his future visitors. Inspired by the famous Voynich manuscript.
Adventure
If Fusion Were That Easy
$14.99
humorous 2.5D point-and-click adventure about cold fusion and preventing the apocalypse.
Puzzle
After three apocalyptic events known as the "Catalysts", what remains of humanity fights for peace.
Visual Novel
Interstellar Sentinel
$11.99
A thrilling sci-fi fantasy shmup / shoot'em up with epic boss battles and a vast arsenal of futuristic weapons!
Action
Crack the case with Clash!
Visual Novel
Space Menace
$10.99
Space Menace is a real-time sci-fi space exploration and space battle game.
Strategy
Human Upgrade Labs
$4.99
You will be subjected to a series of tests designed to improve you in every conceivable way. Or so you have been told.
Puzzle
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