Are there any games or even homebrews / system conversions for this particular genre?
It might not be the answer you're after, but D&D 4e handles this genre with practically nil in the way of changes. Just say a blaster or a blunderbuss equals a crossbow, change a bit of set dressing, and you're good to go.Are there any games or even homebrews / system conversions for this particular genre?
There aren't many, but cool choices include Sky Realms of Jorune, GURPS: Planet of Adventure, Adamant Entertainment's Mars RPG, & (to a degree) Space: 1889. It just occurred to me that you could use Star Wars to run a really nifty S&P campaign, just restrict everyone to a single planet that's been cut off due to isolation & loss of star travel. Add in aging droids, relic tech of various sorts, various aliens, and the Force, and you've got a very cool S&P setting.What about original games?
I need setting inspiration crunch!