[Haegin]

That seems fairly reasonable for speed running - most speed runners are doing countless practice runs and the time spent running is dwarfed by the relatively small amount of time I imagine is required to start a keylogger and hit record on a camera. Additionally if the speedrunner sets a new record there are probably a good number of people happy to check the video and if no record is set then it's not really relevant.

With a multiplayer game that lots of people are playing online in multiple rounds that's a lot less feasible. Would you ever want to watch a bunch of videos of people playing a turn based strategy game to make sure they're not cheating? Even if you did put these requirements in place, if you suspect someone you're playing against is cheating and ask for the video proof that they're not what motive do they have to hand anything over? For the hypothetical speed runner they need to prove their record so they can lay claim to something which takes a lot of time and effort to pull off. For the Worms player they get to confirm that they didn't cheat when playing some stranger on the internet? Then they have to do this again next game in 10 minutes time? It's just not practical.