If I recall correctly, Starcraft 2 has a pause in online match. Other players get pause screen and can unpause the game. It all comes down to both(all) players agree on pause, and can be useful if correctly implemented.

Martha Is Dead is a grim psychological triller about twin sisters, set in Italy at the end of WW2. It’s not about war, however. This game left me with deep emotions no other game could do. Heed the warnings given by authors, though. It may come too disturbing to some people.