Sci-fi builder
Games For Pleasure · 2023 · Adventure, Simulation, Action, Action-Adventure, Space Sim
PC
Mixed53% · 17
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Screenshots
About Sci-fi builder
Sci-Fi Builder is a sandbox construction and colony sim where you create your own space station, build rooms, place furniture, and control aliens, robots, and NPCs in a fully interactive sci-fi world.🛸 What Can You Build?
Sci-Fi Builder is a sandbox of pure creative freedom. Construct space stations, experiment with alien societies, and push sci-fi imagination to the limit. There’s no story, no endgame — just infinite building, roleplay, and weird cosmic fun.So suit up, space architect — your colony awaits.
- Design custom sci-fi rooms with full creative freedom (no grid snapping)
- Place and move furniture, props, and devices anywhere you want
- Paint and recolor your station with endless style options
- Control lighting and effects for cinematic space vibes
- Create unique interactions between characters, robots, and props
- Build societies, alien soap operas, or robot dance battles
- Hundreds of beings: humanoids, aliens, robots, and creatures
- Customize outfits, personalities, and behaviors
- Directly control NPCs or let AI surprise you with emergent stories
- Watch colonies form, relationships spark, and chaos unfold
- Space furniture, construction parts, computers, and gadgets
- Custom colors for walls, outfits, and alien gear
- Wardrobe customization for every character
- NPC personality sliders (will your robot be flirty, moody, or feral?)
- No object limits — build until your station can’t handle it
Sci-Fi Builder is a sandbox of pure creative freedom. Construct space stations, experiment with alien societies, and push sci-fi imagination to the limit. There’s no story, no endgame — just infinite building, roleplay, and weird cosmic fun.So suit up, space architect — your colony awaits.
DLC & expansions
🎁 Complete the collection
Base game + 14 of 17 DLC at today's best prices (some DLC unpriced).
$172.35
to own everything
-50%Beasts for Sci-fi builder
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-50%Erotic fiction for Sci-fi builder
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Free to playMonsters for Sci-fi builder
Free
Free to playPreview for Sci-fi builder
Free
Free to playSci-Fi characters for Sci-fi builder
Free
What Steam players say
Recent verbatim reviews from Steam — separate from playze.io community reviews below.
Horrible performance, totally pointless and extremely complicated to handle. Quite frankly, it is easier to learn how to develop a game than it is how to play this game - and that is even once you accepted the fate that there is absolutely no point to this game. You can model your space station and look at it. That is it. And yes: you can bring in your characters and let them do some erotic stuff. The result? You go: Mehh...this is what I wasted all my time watching tutorials for so I can set-up this kind of scene? And then that is all it is: One static scene to watch. That is it.29 found this helpful
If you would like to dump 5-100 dollars on an almost completley non-functional porn game/ space game this is it. If you want to have fun go practically anywere else.23 found this helpful
This game crashes more than a blind race car driver. The character models are so stiff and buggy that they make Garry's Mod look like a triple A game.8 found this helpful
absolutely love this game. There is a solid progression in updates. This is one of those games you can spend forever in and lose all track of time. If you love space, building stuff and playing with characters then look no further than this game!!!!8 found this helpful
Well, pretty specific game for specific people - if you tired of shooters and strategy games can entertain you a lot.7 found this helpful
I really wanted to like this but the base game is empty without the DLC's! Base game should be f2p imo.3 found this helpful
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