Starmada 30th Anniversary Edition
I was looking for something to scratch my spaceship wargaming itch. A set of generalist rules that you could apply to basically any setting and have a semi-reasonable approximation of things. Enter Starmada. Now its newest 30th anniversary edition, it lets you build and battle on the tabletop whatever ships you can imagine.
Naturally as a generalist set it lacks specific gimmicks, with anything offensive having to be translated into weapon qualities (ie a big area blast would be “proximity”, and a powerful kinetic cannon shell would be “crushing”) and anything defensive being translated to either “screens” (roll above X or the attack fails) or “shields” (takes a hit before anything else). You get the idea.
It requires some imagination. But if you have imagination and a willingness to abstract, well let me just say that even my initial crude playtesting sessions had me beaming bright. Want to play as a cumbersome pure brute force fleet going against an agile but brittle rapier? This lets you do all that and then some.