OpenFrontIO/docs/gamemodes/nuke-wars.md

Nuke Wars Gamemode

Nuke Wars is a team-based nuclear warfare gamemode where teams battle for territory control using only nuclear weapons. The mode emphasizes strategic placement of defensive structures during a preparation phase, followed by an all-out nuclear assault.

Game Rules

Map and Teams

• Only available on the Baikal map
• Teams are split 50/50 on the map (Team 1 on left, Team 2 on right)
• Each team starts in their own territory and cannot build across the midpoint during prep phase

Preparation Phase

• A configurable slider is in the lobby for changing the preparation time
• Teams can only build in their territory during this phase
• Focus on setting up SAM defenses and missile silos
• Countdown timer shows remaining prep time

Unit Restrictions

• Allowed Units:
  • Any units that do not include the MIRV.
• Blocked Units:
  • MIRV missiles

Combat Phase

• After prep phase ends, nuclear warfare begins
• Only nuclear missiles can cross the midpoint
• SAM defenses remain territory-bound
• SAM effectiveness:
  • 100% chance to intercept Atom Bombs
  • 80% chance to intercept Hydrogen Bombs

Win Conditions

1. Territory Control
   • A team loses if their territory drops below 5% of total map area
   • Territory percentage excludes irradiated (fallout) tiles
2. Time Limit
   • If time limit expires, team with most territory wins

Strategic Elements

• Balance between offense (missiles) and defense (SAMs)
• Careful placement of SAM coverage
• Managing nuclear strikes to maintain territory control
• Protecting key defensive infrastructure
• Developing an economy during preparation phase

Setup Requirements

• Gamemode available in both public and private lobbies
• Must select Baikal map
• Teams must be balanced
• Settings automatically enforced when Nuke Wars is selected