Got it. I'll add a 50-turn long wait command.
I like the idea of turn counts in the log. I'm undecided about whether that should be on by default, or provided as an optional feature. I think having the numbers there could be unnecessarily distracting for some players, so I may want them to not normally be shown.
Regardless of whether it's shown in the UI, turn should definitely be recorded and put in the log when it's output at the end of the game.