It's impossible to play any Metal Gear game with zero kills. The bosses must absolutely be killed. The original Dues Ex, however...

the tranquilliser

There's no tranq gun in MGS 1 or 2...

Thing is in mgs its about stealth and with charisma runs you still fight bandits and the likes.... I don't know many games where you literally can talk your way through any confrontation. I'm sure there are several games though, just can't think of any.

you are wrong,
in mgs you get rewarded if you avoid killing and confrontation
as for games that you can talk your way out of encounters fallout 123 and new vegas are options as well as shin megami tensai, coruption of champions, trails in tainted space, deus ex: mankind divided and others
you sound like you dont play video games

And no I don't play a lot of games. Right now playing rainbow 6, pretty ******* good.

seige or the older one?

Siege, old ones were good too though.

that game looks dope, havent played it yet, hows it going?

I'm pretty sure at least 2 of the games you mentioned are porn games and in mgs you use stealth to avoid conflict, in fallout you can talk out of some conflicts but you still need to fight if found by animals and bandits.

still count though, and no one is forcing you to engage those encounters, you just choose too

Yeah but in undertale you can literally talk your way out of every confrontation, while a bit unrealistic (then again were talking about a game where the king is a talking goat soo) it's a neat concept that I don't see done in many games.

oh so just like fallout 123 new vegas, shin megami tensai, coruption of champions, trails in tainted space, deus ex: mankind

It's the most recent, that's why

You dont think its wierd that a fallout game is being credited for somthing undertale did rather then something fallout already did?

well in mgs3 you do have to kill one person
;_;7