It is Map 21 Back to the Rotten Forest.
Ironhide Game Studio's fourth installment in the Kingdom Rush series, Kingdom Rush: Vengeance, was unveiled on July 17, 2018, and it was made available on November 22 of the same year. Released following Kingdom Rush: Origins, it is the fourth game in the series and the chronological continuation of the second game, Kingdom Rush: Frontiers. The places first seen in Kingdom Rush are revisited. As the villain Vez'nan returns to Linirea and destabilizes the country once more, the player assumes control of the situation.