inFAMOUS: Second Son: It is entirely possible to make it through almost the whole game without killing a single person yourself, relying entirely on subduing people.That said, pacifist empires can insult other empires the same as everyone else, so even though they can't declare war themselves, nothing's stopping them from riling up their target empire until it declares war on them. Fanatical Pacifists can only wage defensive wars, which means someone must declare war on them they can't be the aggressor for any reason.

The first level locks you into liberation wars and defensive wars (You can only wage war to make your war-goal planets into a new nation that follows your ethos, stop atrocities like purges, humiliate the target empire, or to defend yourself).

Stellaris has the Pacifist and Fanatical Pacifist ethos.

Endless Legend offers an achievement for winning the game as the Drakken (a faction which favors diplomacy) without ever being at war with another player.

However, due to either an oversight or intentional exception, planetary invasion modules don't count as weapons, allowing Amoeba ships covered in defenses but with no 'weapons' to invade and annex other empires' planets.

Endless Space encourages this with an achievement that is rewarded for winning a game without ever placing a weapons module on a ship (bar the Starting Units).

In the first three installments this was a Self-Imposed Challenge, but since Civilization IV its also an official game option.

You shoot for one of the peaceful victories, but cannot go to war. A more literal version is 'Always Peace', which is Exactly What It Says on the Tin.Also, since a city-state usually will only attack a nearby enemy city you'd have to be lucky that it was their capital as they'd sue for peace if they lost an ordinary city. As mentioned above, it would have to be a low difficulty level. If they manage to take the opposing civ's capital you would win. If another civ has wiped out the others apart from you and attacks a city-state you can supply the city with army units as gifts. In Civ 5 it is theoretically possible to win using a city-state to do your 'dirty work'.The Culture, Diplomatic and (to a certain extent) Space Race victories in Civilization can be achieved without a single battle (although the higher levels will manipulate you into conflicts with other Civs).

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