How many mission simultaneously

[Epthelyn]

If you mean ongoing flights which I plan to continue with or add to later (e.g. stations or probes) then I have 75 active flights currently, including probes around all but Moho and Eeloo.

If you mean how many missions performed at the same time whilst not just leaving something in orbit (i.e. two craft on paths to encounter) then it depends what I'm doing and how big the rockets need to be. To get my set of probes to Jool I launched a rocket for every moon because I over-engineered the probes and ended up with something more like an orbital habitation module. Getting 5 of them to Jool on one rocket with a low-end computer was never going to work so I launched them one after another with enough gap in between to get into orbit around Jool etc.

Normally I just stick to one 'active' mission at a time though, simply because unless my destination is Eeloo or Jool, the flights don't usually take more than 20-30 minutes.

[SuperWeegee4000]

I started a new save today and have one FIP in that one: A flag at the landing site of the Basiq I capsule, KSC's first orbital rocket. (This time I started with Jebediah.)

[SpaceSphereOfDeath]

I hope you don't mean total flights,

If you mean current flights enroute/arriving at their destination

About 12