Cool Things in Clockwork & Cthulhu

Today a PC decided to dispatch an NPC the party was interrogating. No torture or anything. The NPC was answering questions, rather compliant tied up in a chair. But without hesitation, matchlock pistol to the head! The player just couldn't see an answer to the problems the NPC represented short of death. What that threat looked like for the PC I don't know. Nothing to be done about party paranoia.  Hurray, must mean I'm running the game right.

Any who, so the NPC  is now an open cavity of brains spread over the ale and blood soaked bar table and the PC has a moment of reflection. Have I gone too far? Blowing out the brains of a defenseless enemy? The player asked me if there was a need for a sanity check. I was like whatever, you killed a hardened mercenary, your fine.

On reflection, I thought that was kinda cool. The players are invested enough in the campaign that I don't have to hammer home consequences. They are creating their own experience to the events because the story has come alive at some point for all participants.

This campaign has been rocking really well by I think these elements;

Quality adventure product,

PC buy in regarding genre tropes,

and a GM making the action where the PCs are which means hacking the hell out of the published material to bend and reflect the PCs actions in the game world.