https://www.pcgamer.com/play-rainbow-six-siege-for-free-again-this-weekend/

Ubisoft is offering another free weekend for its wildly successful tactical FPS Rainbow Six Siege.

In a slightly unusual interpretation of the word “weekend”, Siege will be freely available to play from Thursday 16th of August, continuing through until Monday 20th. According to Ubisoft, this will offer full access to all maps, modes and operators.