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 Alliances, Diplomacy, and Clans Guide

Use alliances, clan identity, communication, and border planning effectively in OpenBack multiplayer.

Build alliances around shared interests

A useful alliance gives both players security, time, or leverage against a common threat. Use the safer border to grow elsewhere, but keep watching it as the map changes.

Coordinate clan play

A clan provides shared identity, not automatic strategy. Agree on starting areas, economic roles, targets, and which player will invest in specialized infrastructure before a team match begins.

Send actionable messages

Useful communication names a player, location, timing, or action. A warning about an aircraft approaching a specific area is more useful than a general danger message. Keep messages short enough to read while controlling the map.