I think quite a few wargames, both computer-based and pre-computer, simulate friction at some level. The original Prussian Kriegspiel involved opposing players

I think quite a few wargames, both computer-based and pre-computer, simulate friction at some level. The original Prussian Kriegspiel involved opposing players being in different rooms having information conveyed to them by an umpire (must have been a lot of work for the umpire). The wargames used in the Western approaches to train WWII convoy commanders made players look through slots to restrict what they could see. Computer wargames like 'Pike and Shot' often won't show you units unless they are visible to your troops. Also your control over units is limited (cavalry will often charge after defeated enemies of their own accord).