Please implement UNDO

[orbit2021]

Seriously. Please.

[TocinoSarcoma]

I can't agree enough, I am tired of getting 4 milk, 4 wheat and no refined goods in my last turn because of this

[choog]

Yes!
Every game with complicated turns should have undo.

[Meeplelowda]

This is a great summary about adding an undo function on BGA written by a dev that I can't improve upon:

Why are the inclusion of undo buttons so random and sporadic over the games on here?

Undo needs to be implemented individually for every game. It's not a box you check to just make it happen. Furthermore, undo is tricky to implement correctly and very bug prone. As such, it's often avoided by game developers.

Either commit to allowing rectons to be made, or ban them over the entire site unless a game specifically allows for it in the rules.

Wish granted?
Official BGA policy states that undo should be avoided in games.
"As a rule of thumb, on BGA we advise you to not undo moves. Undo are painful for opponents, in real world and online. Some players may also use Undo to 'test' situations while they should just think instead. In many cases, proposing an 'Undo' means also adding an extra step, which is not good for the game interface."
See https://boardgamearena.com/doc/BGA_Undo_policy

Since BGA seems to be going to allowing them, why doesn't this game have one?

In summary:
1) Undo isn't encouraged
2) And it's not trivial to implement

I developed Gaia Project and got a similar request. I don't want to volunteer a dozen hours to implement a feature that I don't feel is needed and may introduce tons of bugs.