Do you have crew respawn disabled?

[Zeroignite]

So, as of 0.21, we now have to hire crew. The default behavior on losing a Kerbal is that they appear as "MIA", but eventually return to your available roster.

However, you can make it so once a Kerbal has been killed, they're gone forever. Around line 58 in your persistant.sfs, set:

DIFFICULTY
	{
		MissingCrewsRespawn = False
	}

I want my mistakes to stick, and thus disabled crew respawning. How about you?

[rosenkranz]

Wow, did not know this. I might like to do this as well.

[regex]

How to start a new game of Kerbal Space Program:

1. Create new save.

2. Exit save.

3. Edit save, enabling permadeath.

4. Play.

[Outback_Zach]

Wow! I thought it was a bug that my crew was respawning. I guess it is time to retire my Clone Remover mk II. Also further down is all of your stats for your save. I spent a good amount of time looking through the memories.

[Necandi Brasil]

Yes I have, prefer to feel the tension of losing the crew.

Maybe, even visiting their loved ones to tell about their fate

[Joe Shmoe]

I found the setting by accident a bit ago and changed it to permadeath, but since then I haven't lost any Kerbonauts to test it (yet ).

[astropapi1]

Since all my manned rockets have abort sequences on ascent, I haven't lost any kerbals... yet.

Seriously, landers that can abort in the middle of a descent, ships with a plan B... They're your friends.