Raid just game over’s with characters still alive

Yep, happens to me sometimes too. Not sure why but I'm not going to bother trying to read the 27 pages of documentation they have about it that probably explains it. There's already an excessive amount of stuff happening in the game to try understanding.

Don't feel too bad though, CG doesn't play the game, and often they don't understand what happens in it either!

Ends after the Krayt dragon has taken five turns while enraged.

Yup... Read Apex Predator