Civilization 7's Arc of Tomorrow update overhauls nuclear warfare and brings back the Loyalty system

Civilization 7 is getting a major free update called Arc of Tomorrow, due out in 2027, that extends the game's playable timeline from the 1950s into the near future. It's a sweeping addition that touches tech trees, civics, economics, and — most notably — how nuclear war actually plays out.

The update brings updated tech and civic trees, new Triumphs, new social policies, and new narrative events. There's also an expanded economic system where you can combine goods into more complex commodities — enriched uranium being the obvious example. Culture gets new objectives in the form of Great Works of Film, which work similarly to Rock Bands in Civilization 6, with film crews scouting locations for the best shoots. And yes, Gandhi is back as a playable leader, because of course he is.

The headline mechanical change is a rework of nuclear warfare. Game director Matt Owens explained at a recent panel that previous Civ games essentially rewarded whoever reached nukes first with a near-unstoppable endgame advantage. Arc of Tomorrow flattens that by giving all major powers access to nuclear weapons and introducing a one-turn missile delay — fire a nuke and it hangs in the air for a full turn before impact, giving the target time to scramble defences or launch a retaliatory strike. "You have to have your defences in place," Owens said. "You have to have a plan in place and an understanding of your opponent's nuclear arsenal, because they are going to have an opportunity to rally their own defences, or send a retaliatory strike right back at you." The goal is to make mutually assured destruction feel like an actual strategic tension rather than a victory lap for the tech leader.

For players who'd rather avoid direct nuclear exchange — sensible, given the new deterrence mechanics — Arc of Tomorrow is also reviving the Loyalty system from Civilization 6, letting you wage proxy conflicts by destabilising disloyal cities in rival empires. Combined with the nuclear brinkmanship, it sounds like the late game is getting a serious overhaul. No specific release date beyond 2027 has been confirmed yet.