HoMM3 HD is a mod (add-on) for the game Heroes of Might and Magic 3.

I suggest giving 5 minutes to make a move. That is, the timer starts after a move is made or after 5 minutes. Moreover, 5 minutes is given once and for the entire week (a separate timer).
Since we decided to play a fast-paced game, let's play a fast-paced game... I am all for a timer in the competitive mode; I've been waiting for it for 1000 years.