Hiya!
Depending on game system, yes, absolutely. In both "ways" as well (e.g., Players win OR Players loose).
In fact, I've used this tactic to great effect to curb "munchkinism" back in the day of 2e (we played that version for about 2 years or little longer). Someone, usually a new player from another game group, would bring in some complete monstrosity that took so many liberties with the rules it should be charged with a crime. You know the type: "Here's my 7th level Paladin. I have +14 to hit and +20 on damage with BOTH my two handed swords...which I can use one-handed and get 2 attacks a round with, each!". Rather than just laugh at him/her, I'd just start "dictating" fights.
DM: "Ok, so that's the round then, next..."
Munchkin Player: "Wait! I didn't go this round!"
DM: "Ohhh, right...Ok, you kill four orcs. Now everyone roll initiative for next round"
Munchkin Player: "Don't I have to roll?"
DM: "Dude, you can't miss except on a one and you can't NOT kill them when you hit. You roll 1d20, 1d20, 1d20, 1d20, and then you roll 1d10, 1d10, 1d10, 1d10. That's a lot of rolling for the almost guaranteed effect of hearing 'it dies'. It's just wasting time"
Munchkin Player: "But...er..."
...then after the game...
Munchkin Player: "I didn't roll a single to-hit roll that session, you know. It was really boring. I want to roll next time. It's more exciting".
DM: "Then make a new character that doesn't have four attacks a round at +14/+20. Make a normal character that has +3/+5 and has, at most, 3/2 for attack rate. Then you'll be rolling all the time"
Seriously had to do this twice (or thrice?) in my DM'ing career. Each time the Player brought in a new PC of reasonable power and each time the player ended up enjoying the game MUCH more and stayed with us for years.
OH, and when I do say "You all die", I will usually follow that up with a question of "Is that ok with you guys?". Then I explain the situation from the DM side of things and the players typically, not always, will say "Yeah, ok...narrate away and then we'll get rolling on new PC's".
^_^
Paul L. Ming