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Sci fi RPG systems
(lemmy.ca)
This community is for meaningful discussions of tabletop/pen & paper RPGs
Rules (wip):
I am that guy that recommends GURPS, which I'm actually using right now to run a sci-fi campaign. 3d6 is a great system, there are tons of sci-fi skills baked right in, Ultra Tech is a great resource for laser guns and robots and all sorts of fun tech, and there are like half a dozen supplements full of ship stat blocks. Yeah the crunch can be a lot, if you want it to. You can also ignore most of it if you want, or slow-drip it to your players.
I think the broad nature of sci-fi means that, when it comes to systems, your choices are to either find a system that fits the exact universe you're running, or build it piece by piece.