Ultimate space battle simulator

It's Startrek in Minecraft, what's not to like? You can build spaceships and physically fly them (ok it's more like jumping) around space and land on other dimensions.
More of a pack utility than a plug and play mod, since you have to set up the configs for space and planet mapping yourself.
Only downside is that certain things like unusually coded blocks, multiblocks, etc often are not supported. Best case scenario, they break every jump and have to be reassembled/ or placed again. Worst case, your world gets corrupted. Rotating your ship is a bit iffy at times too, and has even less support for modded blocks. Best to test blocks on a superflat test world, and never rotate your ship when jumping. But otherwise a really freaking cool mod.