Territory Expansion
Conquering Land
Expand your territory by conquering adjacent tiles. Your border tiles determine where you can expand next.
Border Management
Border tiles are automatically calculated based on neighboring territories. Focus expansion on strategic positions.
How Territory Works
Your territory consists of all tiles you control. The game automatically tracks:- Border Tiles: Tiles adjacent to enemy or neutral territory
- Interior Tiles: Tiles completely surrounded by your own territory
- Territory Size: Total number of tiles owned determines victory progress
Resource Management
OpenFront features two primary resources that fuel your expansion:- Gold
- Troops
Gold is the primary currency used to build units and structures.Earning Gold:
- Passive income based on territory size
- Trade ships arriving at ports
- Trains delivering goods via railroads
- Conquering enemy players (inherit their gold)
- Workers generating steady income
- Building military units (warships, nukes)
- Constructing structures (ports, cities, defense posts)
- Upgrading existing structures to higher levels
Gold income scales with your territory and structures. Larger empires generate more passive gold per turn.
Combat System
Attack Types
Land Attacks
Land Attacks
The primary method of expansion. Launch attacks from your border tiles against neighboring enemies or neutral territory.
- Attacks consume troops based on attack size
- Battles resolve automatically each turn
- Both attacker and defender lose troops in combat
- Larger borders with the enemy result in faster expansion
- You can order retreats to conserve troops
Naval Invasions
Naval Invasions
Artillery & Defense
Artillery & Defense
Advanced warfare using specialized military units.
- Warships: Patrol coastal waters and bombard land targets with shells
- Defense Posts: Boost defensive strength and provide artillery support
- SAM Launchers: Fire missiles to intercept incoming nuclear weapons
- Missile Silos: Launch nuclear strikes against distant targets
Combat Mechanics
Attack Speed: The number of tiles conquered per turn depends on:- Number of attacking troops
- Size of the shared border
- Defensive bonuses (defense posts, fallout)
- Attackers lose troops based on terrain and defenses
- Defenders lose troops based on attack strength
- Defense posts provide defensive bonuses to nearby tiles
Structures
Strategic structures provide economic and military advantages:| Structure | Purpose | Benefits |
|---|---|---|
| City | Population center | Increases troop generation rate |
| Port | Naval base | Enables trade ship spawning for gold income |
| Factory | Industrial center | Spawns trade trains on railroad networks |
| Defense Post | Military fortification | Artillery support and defensive bonuses |
| SAM Launcher | Air defense | Intercepts incoming nuclear weapons |
| Missile Silo | Strategic weapons | Launch nuclear strikes at enemies |
Win Conditions
Victory is achieved by controlling a specific percentage of the map’s total territory:- The required percentage varies by map and game mode
- Your progress is tracked in real-time
- Last player/team standing also wins
- Conquered players’ territories become available for capture
Spawn Phase
Games begin with a spawn phase where players are immune to attacks:- Use this time to expand into neutral territory
- Position yourself strategically for the main game
- Build initial structures and units
- Immunity ends after a fixed number of turns
Nations (AI opponents) may have different immunity durations than human players.