OpenBack — Online Territorial War and Strategy Game

OpenBack is a browser-based territorial war and real-time strategy game where players expand nations across a world map, manage troops and gold, build military and economic structures, form alliances, and conquer rival territory.

The game combines nation building, country conquest, geopolitical strategy, diplomacy, economy management, empire expansion, military planning, and world domination with fast .io-style territory control. Its evolving gameplay includes solo nations, online multiplayer, ranked competition, armies, aircraft, tanks, ships, missiles, and defensive infrastructure.

Play solo against computer-controlled nations, host or join private multiplayer games with shareable lobby links, or enter ranked 1v1 matchmaking against another online player. OpenBack runs directly in a modern desktop or mobile web browser without a download.

OpenBack game features

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Tutorial

OpenBack Nuclear Weapons and Defense Guide

Plan silo attacks, understand atom bombs, hydrogen bombs and MIRVs, and reduce nuclear damage in OpenBack.

Build a silo for a reason

A missile silo is expensive infrastructure. Protect it and make sure you can afford the intended weapon. A silo without an economic plan can delay every other part of your nation.

Choose the correct weapon

Atom bombs provide focused destruction, hydrogen bombs cover a much larger area at a higher cost, and MIRVs spread warheads across a nation. Use the smallest weapon that achieves the goal.

Reduce enemy strike value

Spread essential structures so one blast cannot remove everything. SAM launchers defend an area from incoming missiles, but their timing and interception behavior can be tested by a determined attacker.

  • Watch launch trajectories as well as warnings.
  • Separate buildings that perform the same essential role.
  • Keep gold for rebuilding and defense.
  • Avoid strikes that leave your own nation defenseless.